enable SPI3 iosclk 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@xxxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxx>
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
---
Hi,
V1 -> V2
- the "sclk_spi3" doesn't need to be enabled in boot time as it
is handled by the spi driver itself.
- use the CLK_IS_CRITICAL flag for the ioclk
Andi
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 dcb4391..c33150e 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -1641,7 +1641,8 @@ 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
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