From: Andi Shyti <andi.shyti@samsung.com>
To: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Tomasz Figa <tomasz.figa@gmail.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <k.kozlowski@samsung.com>,
linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Andi Shyti <andi.shyti@samsung.com>,
Andi Shyti <andi@etezian.org>
Subject: [PATCH v4 2/2] clk: exynos5433: enable sclk_ioclk for SPI3
Date: Thu, 07 Jul 2016 21:13:57 +0900 [thread overview]
Message-ID: <1467893637-12573-3-git-send-email-andi.shyti@samsung.com> (raw)
In-Reply-To: <1467893637-12573-1-git-send-email-andi.shyti@samsung.com>
enable SPI3 critical clocks by using the CLK_IS_CRITICAL flag.
There is no device which is supposed to enable this clock when
needed, therefore, the only way to use the SPI bus is to enable
it in boot time.
Suggested-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
---
drivers/clk/samsung/clk-exynos5433.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 337387b..fb8d330 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -1648,7 +1648,8 @@ static struct samsung_gate_clock peric_gate_clks[] __initdata = {
GATE(CLK_SCLK_IOCLK_SPI4, "sclk_ioclk_spi4", "ioclk_spi4_clk_in",
ENABLE_SCLK_PERIC, 21, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_IOCLK_SPI3, "sclk_ioclk_spi3", "ioclk_spi3_clk_in",
- ENABLE_SCLK_PERIC, 20, CLK_SET_RATE_PARENT, 0),
+ ENABLE_SCLK_PERIC, 20,
+ CLK_IS_CRITICAL | CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_SPI4, "sclk_spi4", "sclk_spi4_peric", ENABLE_SCLK_PERIC,
19, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_SPI3, "sclk_spi3", "sclk_spi3_peric", ENABLE_SCLK_PERIC,
--
2.8.1
next prev parent reply other threads:[~2016-07-07 12:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-07 12:13 [PATCH v4 0/2] mark spi clocks as critical and enable spi3 clocks Andi Shyti
2016-07-07 12:13 ` [PATCH v4 1/2] clk: exynos5433: do not use CLK_IGNORE_UNUSED for SPI clocks Andi Shyti
2016-07-07 12:46 ` Krzysztof Kozlowski
2016-07-07 13:27 ` Andi Shyti
2016-07-07 15:20 ` Sylwester Nawrocki
2016-07-07 15:39 ` Andi Shyti
2016-07-07 12:13 ` Andi Shyti [this message]
2016-07-07 13:18 ` [PATCH v4 0/2] mark spi clocks as critical and enable spi3 clocks Sylwester Nawrocki
2016-07-07 15:26 ` Sylwester Nawrocki
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