Add fix for the BeagleBone boot failure
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From patchwork Tue Mar 27 17:47:04 2018
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: clk: ti: fix flag space conflict with clkctrl clocks
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From: Tero Kristo <t-kristo@ti.com>
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X-Patchwork-Id: 10311335
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Message-Id: <1522172824-14094-1-git-send-email-t-kristo@ti.com>
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To: <sboyd@kernel.org>, <mturquette@baylibre.com>,
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<linux-omap@vger.kernel.org>, <linux-clk@vger.kernel.org>,
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<tony@atomide.com>
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Cc: <arnd@arndb.de>, <linux-arm-kernel@lists.infradead.org>
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Date: Tue, 27 Mar 2018 20:47:04 +0300
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The introduction of support for CLK_SET_RATE_PARENT flag for clkctrl
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clocks used a generic clock flag, which causes a conflict with the
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rest of the clkctrl flags, namely the NO_IDLEST flag. This can cause
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boot failures on certain platforms where this flag is introduced, by
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omitting the wait for the clockctrl module to be fully enabled before
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proceeding with rest of the code.
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Fix this by moving all the clkctrl specific flags to their own bit-range.
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Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Fixes: 49159a9dc3da ("clk: ti: add support for CLK_SET_RATE_PARENT flag")
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Reported-by: Christophe Lyon <christophe.lyon@linaro.org>
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Tested-by: Tony Lindgren <tony@atomide.com>
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---
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drivers/clk/ti/clock.h | 9 +++++----
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1 file changed, 5 insertions(+), 4 deletions(-)
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diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
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index 90b86aa..b582780 100644
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--- a/drivers/clk/ti/clock.h
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+++ b/drivers/clk/ti/clock.h
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@@ -76,6 +76,11 @@ enum {
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#define CLKF_CORE (1 << 9)
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#define CLKF_J_TYPE (1 << 10)
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+/* CLKCTRL flags */
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+#define CLKF_SW_SUP BIT(5)
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+#define CLKF_HW_SUP BIT(6)
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+#define CLKF_NO_IDLEST BIT(7)
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+
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#define CLK(dev, con, ck) \
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{ \
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.lk = { \
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@@ -185,10 +190,6 @@ struct omap_clkctrl_data {
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extern const struct omap_clkctrl_data dm814_clkctrl_data[];
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extern const struct omap_clkctrl_data dm816_clkctrl_data[];
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-#define CLKF_SW_SUP BIT(0)
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-#define CLKF_HW_SUP BIT(1)
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-#define CLKF_NO_IDLEST BIT(2)
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-
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typedef void (*ti_of_clk_init_cb_t)(void *, struct device_node *);
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struct clk *ti_clk_register(struct device *dev, struct clk_hw *hw,
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@ -619,6 +619,9 @@ Patch316: arm-sunxi-nvmem-fixH3.patch
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# Upstream 4.17 back port
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Patch317: of-i2c-fix-module-aliases.patch
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# https://patchwork.kernel.org/patch/10311335/
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Patch318: clk-ti-fix-flag-space-conflict-with-clkctrl-clocks.patch
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# Enabling Patches for the RPi3+
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Patch320: bcm2837-rpi-initial-support-for-the-3.patch
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Patch321: bcm2837-gpio-expander.patch
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@ -1903,6 +1906,7 @@ fi
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- Further fix for ThunderX ZIP driver
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- Fix for OF i2c module aliases
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- Fix for nvmem on AllWinner H3/H5 SoCs
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- Add fix for the BeagleBone boot failure
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* Mon Apr 09 2018 Jeremy Cline <jeremy@jcline.org>
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- Include the KCS IPMI BMC driver that's in F27
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