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Fix WiFi on Raspberry Pi 3 on aarch64 (rhbz 1649344), Fixes for Raspberry Pi hwmon driver and firmware interface

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This commit is contained in:
Peter Robinson 2018-11-17 18:06:28 +00:00
parent 6c672bed3d
commit a4764614a7
4 changed files with 462 additions and 508 deletions
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603
brcmfmac-Remove-firmware-loading-code-duplication.patch
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@ -1,71 +1,7 @@
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From: Hans de Goede <hdegoede@redhat.com> From: Hans de Goede <hdegoede@redhat.com>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
Franky Lin <franky.lin@broadcom.com>,
Hante Meuleman <hante.meuleman@broadcom.com>,
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Cc: Hans de Goede <hdegoede@redhat.com>,
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Subject: [PATCH v2 1/6] brcmfmac: Remove firmware-loading code duplication
Date: Wed, 10 Oct 2018 13:00:58 +0200 Date: Wed, 10 Oct 2018 13:00:58 +0200
Message-Id: <20181010110103.21857-1-hdegoede@redhat.com> Subject: [PATCH 1/5] brcmfmac: Remove firmware-loading code duplication
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brcmf_fw_request_next_item and brcmf_fw_request_done both have identical brcmf_fw_request_next_item and brcmf_fw_request_done both have identical
code to complete the fw-request depending on the item-type. code to complete the fw-request depending on the item-type.
@ -165,78 +101,14 @@ index 9095b830ae4d..784c84f0e9e7 100644
goto fail; goto fail;
do { do {
--
2.19.1
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From: Hans de Goede <hdegoede@redhat.com> From: Hans de Goede <hdegoede@redhat.com>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
Franky Lin <franky.lin@broadcom.com>,
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Subject: [PATCH v2 2/6] brcmfmac: Remove recursion from firmware load error
handling
Date: Wed, 10 Oct 2018 13:00:59 +0200 Date: Wed, 10 Oct 2018 13:00:59 +0200
Message-Id: <20181010110103.21857-2-hdegoede@redhat.com> Subject: [PATCH 2/5] brcmfmac: Remove recursion from firmware load error
In-Reply-To: <20181010110103.21857-1-hdegoede@redhat.com> handling
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Before this commit brcmf_fw_request_done would call Before this commit brcmf_fw_request_done would call
brcmf_fw_request_next_item to load the next item, which on an error would brcmf_fw_request_next_item to load the next item, which on an error would
@ -360,78 +232,14 @@ index 784c84f0e9e7..08aaf99fee34 100644
return 0; return 0;
} }
--
2.19.1
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Subject: [PATCH v2 3/6] brcmfmac: Add support for first trying to get a board
specific nvram file
Date: Wed, 10 Oct 2018 13:01:00 +0200 Date: Wed, 10 Oct 2018 13:01:00 +0200
Message-Id: <20181010110103.21857-3-hdegoede@redhat.com> Subject: [PATCH 3/5] brcmfmac: Add support for first trying to get a board
In-Reply-To: <20181010110103.21857-1-hdegoede@redhat.com> specific nvram file
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The nvram files which some brcmfmac chips need are board-specific. To be The nvram files which some brcmfmac chips need are board-specific. To be
able to distribute these as part of linux-firmware, so that devices with able to distribute these as part of linux-firmware, so that devices with
@ -507,78 +315,14 @@ index 2893e56910f0..a0834be8864e 100644
struct brcmf_fw_item items[0]; struct brcmf_fw_item items[0];
}; };
--
2.19.1
From patchwork Wed Oct 10 11:01:01 2018 From 282477a8e4034ee2ea906d2eb234ce9c86f5685f Mon Sep 17 00:00:00 2001
Content-Type: text/plain; charset="utf-8" From: Peter Robinson <pbrobinson@gmail.com>
MIME-Version: 1.0 Date: Sat, 17 Nov 2018 15:18:35 +0000
Content-Transfer-Encoding: 7bit Subject: [PATCH 4/5] brcmfmac: Set board_type used for nvram file selection to
X-Patchwork-Submitter: Hans de Goede <hdegoede@redhat.com> machine-compatible
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From: Hans de Goede <hdegoede@redhat.com>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
Franky Lin <franky.lin@broadcom.com>,
Hante Meuleman <hante.meuleman@broadcom.com>,
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Cc: Hans de Goede <hdegoede@redhat.com>,
linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com
Subject: [PATCH v2 4/6] brcmfmac: Set board_type used for nvram file selection
to machine-compatible
Date: Wed, 10 Oct 2018 13:01:01 +0200
Message-Id: <20181010110103.21857-4-hdegoede@redhat.com>
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For of/devicetree using machines, set the board_type used for nvram file For of/devicetree using machines, set the board_type used for nvram file
selection to the first string listed in the top-level's node compatible selection to the first string listed in the top-level's node compatible
@ -589,169 +333,16 @@ a board-specific name so that we can ship files for each supported board
in linux-firmware. in linux-firmware.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
--- Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
.../net/wireless/broadcom/brcm80211/brcmfmac/common.h | 1 +
drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c | 11 ++++++++++-
.../net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 1 +
.../net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 +
4 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
index a34642cb4d2f..e63a273642e9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
@@ -59,6 +59,7 @@ struct brcmf_mp_device {
bool iapp;
bool ignore_probe_fail;
struct brcmfmac_pd_cc *country_codes;
+ const char *board_type;
union {
struct brcmfmac_sdio_pd sdio;
} bus;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
index aee6e5937c41..84e3373289eb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
@@ -27,11 +27,20 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
struct brcmf_mp_device *settings)
{
struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
- struct device_node *np = dev->of_node;
+ struct device_node *root, *np = dev->of_node;
+ struct property *prop;
int irq;
u32 irqf;
u32 val;
+ /* Set board-type to the first string of the machine compatible prop */
+ root = of_find_node_by_path("/");
+ if (root) {
+ prop = of_find_property(root, "compatible", NULL);
+ settings->board_type = of_prop_next_string(prop, NULL);
+ of_node_put(root);
+ }
+
if (!np || bus_type != BRCMF_BUSTYPE_SDIO ||
!of_device_is_compatible(np, "brcm,bcm4329-fmac"))
return;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
index 4fffa6988087..b12f3e0ee69c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -1785,6 +1785,7 @@ brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo)
fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
+ fwreq->board_type = devinfo->settings->board_type;
/* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */
fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1;
fwreq->bus_nr = devinfo->pdev->bus->number;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index a907d7b065fa..3dbbbb117563 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4177,6 +4177,7 @@ brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus)
fwreq->items[BRCMF_SDIO_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
+ fwreq->board_type = bus->sdiodev->settings->board_type;
return fwreq;
}
From patchwork Wed Oct 10 11:01:02 2018
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X-Patchwork-Submitter: Hans de Goede <hdegoede@redhat.com>
X-Patchwork-Id: 10634363
X-Patchwork-Delegate: kvalo@adurom.com
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From: Hans de Goede <hdegoede@redhat.com>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
Franky Lin <franky.lin@broadcom.com>,
Hante Meuleman <hante.meuleman@broadcom.com>,
Kalle Valo <kvalo@codeaurora.org>,
Chi-Hsien Lin <chi-hsien.lin@cypress.com>,
Wright Feng <wright.feng@cypress.com>
Cc: Hans de Goede <hdegoede@redhat.com>,
linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com
Subject: [PATCH v2 5/6] brcmfmac: Set board_type from DMI on x86 based
machines
Date: Wed, 10 Oct 2018 13:01:02 +0200
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For x86 based machines, set the board_type used for nvram file selection
based on the DMI sys-vendor and product-name strings.
Since on some models these strings are too generic, this commit also adds
a quirk table overriding the strings for models listed in that table.
The board_type setting is used to load the board-specific nvram file with
a board-specific name so that we can ship files for each supported board
in linux-firmware.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v2:
-Use full ISC text for now instead of SPDX tag, because the ISC is not
yet listed under LICENSES
--- ---
.../broadcom/brcm80211/brcmfmac/Makefile | 2 + .../broadcom/brcm80211/brcmfmac/Makefile | 2 +
.../broadcom/brcm80211/brcmfmac/common.c | 3 +- .../broadcom/brcm80211/brcmfmac/common.c | 3 +-
.../broadcom/brcm80211/brcmfmac/common.h | 7 ++ .../broadcom/brcm80211/brcmfmac/common.h | 8 ++
.../broadcom/brcm80211/brcmfmac/dmi.c | 116 ++++++++++++++++++ .../broadcom/brcm80211/brcmfmac/dmi.c | 116 ++++++++++++++++++
4 files changed, 127 insertions(+), 1 deletion(-) .../wireless/broadcom/brcm80211/brcmfmac/of.c | 11 +-
.../broadcom/brcm80211/brcmfmac/pcie.c | 1 +
.../broadcom/brcm80211/brcmfmac/sdio.c | 1 +
7 files changed, 140 insertions(+), 2 deletions(-)
create mode 100644 drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c create mode 100644 drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
@ -765,25 +356,32 @@ index 1f5a9b948abf..22fd95a736a8 100644
+brcmfmac-$(CONFIG_DMI) += \ +brcmfmac-$(CONFIG_DMI) += \
+ dmi.o + dmi.o
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index cd3651069d0c..a4bcbd1a57ac 100644 index cd3651069d0c..b93b1e797333 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -450,8 +450,9 @@ struct brcmf_mp_device *brcmf_get_module_param(struct device *dev, @@ -450,7 +450,8 @@ struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
} }
} }
if (!found) { if (!found) {
- /* No platform data for this device, try OF (Open Firwmare) */ - /* No platform data for this device, try OF (Open Firwmare) */
+ /* No platform data for this device, try OF and DMI data */ + /* No platform data for this device, try OF and DMI data */
brcmf_of_probe(dev, bus_type, settings);
+ brcmf_dmi_probe(settings, chip, chiprev); + brcmf_dmi_probe(settings, chip, chiprev);
brcmf_of_probe(dev, bus_type, settings);
} }
return settings; return settings;
}
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
index e63a273642e9..4ce56be90b74 100644 index a34642cb4d2f..4ce56be90b74 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
@@ -75,4 +75,11 @@ void brcmf_release_module_param(struct brcmf_mp_device *module_param); @@ -59,6 +59,7 @@ struct brcmf_mp_device {
bool iapp;
bool ignore_probe_fail;
struct brcmfmac_pd_cc *country_codes;
+ const char *board_type;
union {
struct brcmfmac_sdio_pd sdio;
} bus;
@@ -74,4 +75,11 @@ void brcmf_release_module_param(struct brcmf_mp_device *module_param);
/* Sets dongle media info (drv_version, mac address). */ /* Sets dongle media info (drv_version, mac address). */
int brcmf_c_preinit_dcmds(struct brcmf_if *ifp); int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
@ -917,77 +515,63 @@ index 000000000000..51d76ac45075
+ settings->board_type = dmi_board_type; + settings->board_type = dmi_board_type;
+ } + }
+} +}
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
index aee6e5937c41..84e3373289eb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
@@ -27,11 +27,20 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
struct brcmf_mp_device *settings)
{
struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
- struct device_node *np = dev->of_node;
+ struct device_node *root, *np = dev->of_node;
+ struct property *prop;
int irq;
u32 irqf;
u32 val;
From patchwork Wed Oct 10 11:01:03 2018 + /* Set board-type to the first string of the machine compatible prop */
Content-Type: text/plain; charset="utf-8" + root = of_find_node_by_path("/");
MIME-Version: 1.0 + if (root) {
Content-Transfer-Encoding: 7bit + prop = of_find_property(root, "compatible", NULL);
X-Patchwork-Submitter: Hans de Goede <hdegoede@redhat.com> + settings->board_type = of_prop_next_string(prop, NULL);
X-Patchwork-Id: 10634365 + of_node_put(root);
X-Patchwork-Delegate: kvalo@adurom.com + }
Return-Path: <linux-wireless-owner@kernel.org> +
Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org if (!np || bus_type != BRCMF_BUSTYPE_SDIO ||
[172.30.200.125]) !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9513614DB return;
for <patchwork-linux-wireless@patchwork.kernel.org>; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
Wed, 10 Oct 2018 11:01:22 +0000 (UTC) index 4fffa6988087..b12f3e0ee69c 100644
Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 873E929A3C +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
for <patchwork-linux-wireless@patchwork.kernel.org>; @@ -1785,6 +1785,7 @@ brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo)
Wed, 10 Oct 2018 11:01:22 +0000 (UTC) fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
id 7B56829A62; Wed, 10 Oct 2018 11:01:22 +0000 (UTC) fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on + fwreq->board_type = devinfo->settings->board_type;
pdx-wl-mail.web.codeaurora.org /* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */
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for <patchwork-linux-wireless@patchwork.kernel.org>; +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
Wed, 10 Oct 2018 11:01:22 +0000 (UTC) @@ -4177,6 +4177,7 @@ brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus)
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<rfc822;patchwork-linux-wireless@patchwork.kernel.org>); fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
Wed, 10 Oct 2018 14:22:58 -0400 + fwreq->board_type = bus->sdiodev->settings->board_type;
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From: Hans de Goede <hdegoede@redhat.com> From: Hans de Goede <hdegoede@redhat.com>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
Franky Lin <franky.lin@broadcom.com>,
Hante Meuleman <hante.meuleman@broadcom.com>,
Kalle Valo <kvalo@codeaurora.org>,
Chi-Hsien Lin <chi-hsien.lin@cypress.com>,
Wright Feng <wright.feng@cypress.com>
Cc: Hans de Goede <hdegoede@redhat.com>,
linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com
Subject: [PATCH v2 6/6] brcmfmac: Cleanup brcmf_fw_request_done()
Date: Wed, 10 Oct 2018 13:01:03 +0200 Date: Wed, 10 Oct 2018 13:01:03 +0200
Message-Id: <20181010110103.21857-6-hdegoede@redhat.com> Subject: [PATCH 5/5] brcmfmac: Cleanup brcmf_fw_request_done()
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The "cur" variable is now only used for a debug print and we already The "cur" variable is now only used for a debug print and we already
print the same info from brcmf_fw_complete_request(), so the debug print print the same info from brcmf_fw_complete_request(), so the debug print
@ -1026,3 +610,6 @@ index 6755b2388fbc..b38c4b40b235 100644
brcmf_fw_free_request(fwctx->req); brcmf_fw_free_request(fwctx->req);
fwctx->req = NULL; fwctx->req = NULL;
} }
--
2.19.1

112
hwmon-rpi-Fix-initial-notify.patch Normal file
View File

@ -0,0 +1,112 @@
From patchwork Sun Nov 11 12:01:11 2018
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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Eric Anholt <eric@anholt.net>,
Florian Fainelli <f.fainelli@gmail.com>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
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Stefan Wahren <stefan.wahren@i2se.com>
Subject: [PATCH] hwmon: rpi: Fix initial notify
Date: Sun, 11 Nov 2018 13:01:11 +0100
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In case an under-voltage happens before probing the driver wont
write the critical warning into the kernel log. So don't init
of last_throttled during probe and fix this issue.
Fixes: 74d1e007915f ("hwmon: Add support for RPi voltage sensor")
Reported-by: "Noralf Trønnes" <noralf@tronnes.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
drivers/hwmon/raspberrypi-hwmon.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/hwmon/raspberrypi-hwmon.c b/drivers/hwmon/raspberrypi-hwmon.c
index be5ba46..0d04572 100644
--- a/drivers/hwmon/raspberrypi-hwmon.c
+++ b/drivers/hwmon/raspberrypi-hwmon.c
@@ -115,7 +115,6 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct rpi_hwmon_data *data;
- int ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
@@ -124,11 +123,6 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
/* Parent driver assure that firmware is correct */
data->fw = dev_get_drvdata(dev->parent);
- /* Init throttled */
- ret = rpi_firmware_property(data->fw, RPI_FIRMWARE_GET_THROTTLED,
- &data->last_throttled,
- sizeof(data->last_throttled));
-
data->hwmon_dev = devm_hwmon_device_register_with_info(dev, "rpi_volt",
data,
&rpi_chip_info,

10
kernel.spec
View File

@ -581,6 +581,12 @@ Patch330: bcm2835-cpufreq-add-CPU-frequency-control-driver.patch
Patch331: bcm283x-drm-vc4-set-is_yuv-to-false-when-num_planes-1.patch Patch331: bcm283x-drm-vc4-set-is_yuv-to-false-when-num_planes-1.patch
# https://patchwork.kernel.org/patch/10686407/
Patch332: raspberrypi-Fix-firmware-calls-with-large-buffers.patch
# https://patchwork.kernel.org/patch/10677591/
Patch333: hwmon-rpi-Fix-initial-notify.patch
# Patches enabling device specific brcm firmware nvram # Patches enabling device specific brcm firmware nvram
# https://www.spinics.net/lists/linux-wireless/msg178827.html # https://www.spinics.net/lists/linux-wireless/msg178827.html
Patch340: brcmfmac-Remove-firmware-loading-code-duplication.patch Patch340: brcmfmac-Remove-firmware-loading-code-duplication.patch
@ -1872,6 +1878,10 @@ fi
# #
# #
%changelog %changelog
* Sat Nov 17 2018 Peter Robinson <pbrobinson@fedoraproject.org>
- Fix WiFi on Raspberry Pi 3 on aarch64 (rhbz 1649344)
- Fixes for Raspberry Pi hwmon driver and firmware interface
* Fri Nov 16 2018 Hans de Goede <hdegoede@redhat.com> * Fri Nov 16 2018 Hans de Goede <hdegoede@redhat.com>
- Enable a few modules needed for accelerometer and other sensor support - Enable a few modules needed for accelerometer and other sensor support
on some HP X2 2-in-1s on some HP X2 2-in-1s

245
raspberrypi-Fix-firmware-calls-with-large-buffers.patch Normal file
View File

@ -0,0 +1,245 @@
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From: James Hughes <james.hughes@raspberrypi.org>
To: eric@anholt.net, stefan.wahren@i2se.com,
linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3] firmware: raspberrypi: Fix firmware calls with large
buffers
Date: Fri, 16 Nov 2018 14:39:07 +0000
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Commit a1547e0bca51 ("firmware: raspberrypi: Remove VLA usage")
moved away from VLA's to a fixed maximum size for mailbox data.
However, some mailbox calls use larger data buffers
than the maximum allowed in that change. This fix therefor
moves from using fixed buffers to kmalloc to ensure all sizes
are catered for.
There is some documentation, which is somewhat out of date,
on the mailbox calls here :
https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface
Fixes: a1547e0bca51 ("firmware: raspberrypi: Remove VLA usage")
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
---
drivers/firmware/raspberrypi.c | 35 +++++++++++++++++-----------------
1 file changed, 18 insertions(+), 17 deletions(-)
v2: Changes to commit message and format only. No code change.
v3: Moved declaration of header back to original position
diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index a200a2174611..44eb99807e33 100644
--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#include <soc/bcm2835/raspberrypi-firmware.h>
#define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf))
@@ -21,8 +22,6 @@
#define MBOX_DATA28(msg) ((msg) & ~0xf)
#define MBOX_CHAN_PROPERTY 8
-#define MAX_RPI_FW_PROP_BUF_SIZE 32
-
static struct platform_device *rpi_hwmon;
struct rpi_firmware {
@@ -144,28 +143,30 @@ EXPORT_SYMBOL_GPL(rpi_firmware_property_list);
int rpi_firmware_property(struct rpi_firmware *fw,
u32 tag, void *tag_data, size_t buf_size)
{
- /* Single tags are very small (generally 8 bytes), so the
- * stack should be safe.
- */
- u8 data[sizeof(struct rpi_firmware_property_tag_header) +
- MAX_RPI_FW_PROP_BUF_SIZE];
- struct rpi_firmware_property_tag_header *header =
- (struct rpi_firmware_property_tag_header *)data;
+ struct rpi_firmware_property_tag_header *header;
int ret;
- if (WARN_ON(buf_size > sizeof(data) - sizeof(*header)))
- return -EINVAL;
+ /* Some mailboxes can use over 1k bytes. Rather than checking
+ * size and using stack or kmalloc depending on requirements,
+ * just use kmalloc. Mailboxes don't get called enough to worry
+ * too much about the time taken in the allocation.
+ */
+ void *data = kmalloc(sizeof(*header) + buf_size, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ header = data;
header->tag = tag;
header->buf_size = buf_size;
header->req_resp_size = 0;
- memcpy(data + sizeof(struct rpi_firmware_property_tag_header),
- tag_data, buf_size);
+ memcpy(data + sizeof(*header), tag_data, buf_size);
+
+ ret = rpi_firmware_property_list(fw, data, buf_size + sizeof(*header));
+
+ memcpy(tag_data, data + sizeof(*header), buf_size);
- ret = rpi_firmware_property_list(fw, &data, buf_size + sizeof(*header));
- memcpy(tag_data,
- data + sizeof(struct rpi_firmware_property_tag_header),
- buf_size);
+ kfree(data);
return ret;
}