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 <[email protected]> Signed-off-by: Andi Shyti <[email protected]> Signed-off-by: Jaehoon Chung <[email protected]> Reviewed-by: Chanwoo Choi <[email protected]> --- 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
