From: dillon.minfei@gmail.com
To: robh+dt@kernel.org, p.zabel@pengutronix.de,
mcoquelin.stm32@gmail.com, alexandre.torgue@st.com,
thierry.reding@gmail.com, sam@ravnborg.org, airlied@linux.ie,
daniel@ffwll.ch, mturquette@baylibre.com, sboyd@kernel.org,
andy.shevchenko@gmail.com, noralf@tronnes.org,
linus.walleij@linaro.org, broonie@kernel.org
Cc: devicetree@vger.kernel.org, dillonhua@gmail.com,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-spi@vger.kernel.org,
dillon min <dillon.minfei@gmail.com>,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 6/9] clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after kernel startup
Date: Wed, 27 May 2020 15:27:30 +0800 [thread overview]
Message-ID: <1590564453-24499-7-git-send-email-dillon.minfei@gmail.com> (raw)
In-Reply-To: <1590564453-24499-1-git-send-email-dillon.minfei@gmail.com>
From: dillon min <dillon.minfei@gmail.com>
stm32's clk driver register two ltdc gate clk to clk core by
clk_hw_register_gate() and clk_hw_register_composite()
first: 'stm32f429_gates[]', clk name is 'ltdc', which no user to use.
second: 'stm32f429_aux_clk[]', clk name is 'lcd-tft', used by ltdc driver
both of them point to the same offset of stm32's RCC register. after
kernel enter console, clk core turn off ltdc's clk as 'stm32f429_gates[]'
is no one to use. but, actually 'stm32f429_aux_clk[]' is in use.
Fixes: daf2d117cbca ("clk: stm32f4: Add lcd-tft clock")
Signed-off-by: dillon min <dillon.minfei@gmail.com>
---
Changes since V5:
separate '[PATCH v5 5/8]' to two, add Fixes tags.
drivers/clk/clk-stm32f4.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index 42ca2dd86aea..fa62e990c539 100644
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -129,7 +129,6 @@ static const struct stm32f4_gate_data stm32f429_gates[] __initconst = {
{ STM32F4_RCC_APB2ENR, 20, "spi5", "apb2_div" },
{ STM32F4_RCC_APB2ENR, 21, "spi6", "apb2_div" },
{ STM32F4_RCC_APB2ENR, 22, "sai1", "apb2_div" },
- { STM32F4_RCC_APB2ENR, 26, "ltdc", "apb2_div" },
};
static const struct stm32f4_gate_data stm32f469_gates[] __initconst = {
--
2.7.4
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next prev parent reply other threads:[~2020-05-27 7:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-27 7:27 [PATCH v6 0/9] Enable ili9341 and l3gd20 on stm32f429-disco dillon.minfei
2020-05-27 7:27 ` [PATCH v6 1/9] ARM: dts: stm32: Add dma config for spi5 dillon.minfei
2020-05-27 7:27 ` [PATCH v6 2/9] ARM: dts: stm32: Add pin map for ltdc & spi5 on stm32f429-disco board dillon.minfei
2020-06-15 9:45 ` Alexandre Torgue
2020-06-15 10:05 ` dillon min
2020-05-27 7:27 ` [PATCH v6 3/9] ARM: dts: stm32: enable ltdc binding with ili9341, gyro l3gd20 on stm32429-disco board dillon.minfei
2020-05-27 7:27 ` [PATCH v6 4/9] dt-bindings: display: panel: Add ilitek ili9341 panel bindings dillon.minfei
2020-05-29 16:17 ` Rob Herring
2020-05-27 7:27 ` [PATCH v6 5/9] clk: stm32: Fix stm32f429's ltdc driver hang in set clock rate dillon.minfei
2020-05-27 8:35 ` Stephen Boyd
2021-03-10 11:43 ` dillon min
2020-05-27 7:27 ` dillon.minfei [this message]
2020-05-27 8:35 ` [PATCH v6 6/9] clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after kernel startup Stephen Boyd
2021-03-10 11:43 ` dillon min
2020-05-27 7:27 ` [PATCH v6 7/9] drm/panel: Add ilitek ili9341 panel driver dillon.minfei
2020-05-27 7:27 ` [PATCH v6 8/9] spi: stm32: Add 'SPI_SIMPLEX_RX', 'SPI_3WIRE_RX' support for stm32f4 dillon.minfei
2020-05-27 9:51 ` Mark Brown
2020-05-27 10:45 ` dillon min
2020-05-27 11:18 ` Mark Brown
2020-05-27 7:27 ` [PATCH v6 9/9] spi: flags 'SPI_CONTROLLER_MUST_RX' and 'SPI_CONTROLLER_MUST_TX' can't be coexit with 'SPI_3WIRE' mode dillon.minfei
2020-06-15 8:49 ` [PATCH v6 0/9] Enable ili9341 and l3gd20 on stm32f429-disco Alexandre Torgue
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