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@xxxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxx>
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Reviewed-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
---
drivers/clk/samsung/clk-exynos5433.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 1f7c4951..e769c80 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -1648,11 +1648,12 @@ 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,
- 18, CLK_SET_RATE_PARENT, 0),
+ 18, CLK_IS_CRITICAL | CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_SCI, "sclk_sci", "div_sclk_sci", ENABLE_SCLK_PERIC,
17, 0, 0),
GATE(CLK_SCLK_SC_IN, "sclk_sc_in", "div_sclk_sc_in", ENABLE_SCLK_PERIC,
--
2.8.1
--
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