From: dillon.minfei@gmail.com
To: robh+dt@kernel.org, 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
Cc: devicetree@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-clk@vger.kernel.org, dillon.minfei@gmail.com
Subject: [PATCH v3 4/5] clk: stm32: Fix stm32f429 ltdc driver loading hang in clk set rate. keep ltdc clk running after kernel startup
Date: Tue, 12 May 2020 15:03:36 +0800 [thread overview]
Message-ID: <1589267017-17294-5-git-send-email-dillon.minfei@gmail.com> (raw)
In-Reply-To: <1589267017-17294-1-git-send-email-dillon.minfei@gmail.com>
From: dillon min <dillon.minfei@gmail.com>
as store stm32f4_rcc_register_pll return to the wrong offset of clks,
so ltdc gate clk is null. need change clks[PLL_VCO_SAI] to clks[PLL_SAI]
add CLK_IGNORE_UNUSED for ltdc to make sure clk not be freed by
clk_disable_unused
Signed-off-by: dillon min <dillon.minfei@gmail.com>
---
drivers/clk/clk-stm32f4.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index 18117ce..0ba73de 100644
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -129,7 +129,8 @@ 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" },
+ { STM32F4_RCC_APB2ENR, 26, "ltdc", "apb2_div",
+ CLK_IGNORE_UNUSED },
};
static const struct stm32f4_gate_data stm32f469_gates[] __initconst = {
@@ -1757,7 +1758,7 @@ static void __init stm32f4_rcc_init(struct device_node *np)
clks[PLL_VCO_I2S] = stm32f4_rcc_register_pll("vco_in",
&data->pll_data[1], &stm32f4_clk_lock);
- clks[PLL_VCO_SAI] = stm32f4_rcc_register_pll("vco_in",
+ clks[PLL_SAI] = stm32f4_rcc_register_pll("vco_in",
&data->pll_data[2], &stm32f4_clk_lock);
for (n = 0; n < MAX_POST_DIV; n++) {
--
2.7.4
next prev parent reply other threads:[~2020-05-12 7:04 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-12 7:03 [PATCH v3 0/5] Enable ilitek ili9341 on stm32f429-disco board dillon.minfei
2020-05-12 7:03 ` [PATCH v3 1/5] ARM: dts: stm32: Add pin map for ltdc, spi5 " dillon.minfei
2020-05-12 7:03 ` [PATCH v3 2/5] dt-bindings: display: panel: Add ilitek ili9341 panel bindings dillon.minfei
2020-05-14 8:21 ` Linus Walleij
2020-05-12 7:03 ` [PATCH v3 3/5] ARM: dts: stm32: enable ltdc binding with ili9341 on stm32429-disco board dillon.minfei
2020-05-14 8:24 ` Linus Walleij
2020-05-14 9:17 ` dillon min
2020-05-14 12:52 ` Alexandre Torgue
2020-05-14 13:07 ` dillon min
2020-05-15 8:31 ` [Linux-stm32] " Benjamin GAIGNARD
2020-05-15 9:24 ` dillon min
2020-05-15 9:34 ` Benjamin GAIGNARD
2020-05-15 10:32 ` dillon min
2020-05-12 7:03 ` dillon.minfei [this message]
2020-05-14 21:02 ` [PATCH v3 4/5] clk: stm32: Fix stm32f429 ltdc driver loading hang in clk set rate. keep ltdc clk running after kernel startup Stephen Boyd
2020-05-15 10:31 ` dillon min
2020-05-12 7:03 ` [PATCH v3 5/5] drm/panel: Add ilitek ili9341 driver dillon.minfei
2020-05-14 8:14 ` Linus Walleij
2020-05-14 10:22 ` dillon min
2020-05-14 14:07 ` Linus Walleij
2020-05-14 8:11 ` dillon min
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