[PATCH 3.12 62/77] clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2014-01-14 00:33:50
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3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Abhilash Kesavan <redacted> commit 2feed5aecf5f367b92bd6b6e92afe9e3de466907 upstream. The sysreg (system register) generates control signals for various blocks like disp1blk, i2c, mipi, usb etc. However, it gets disabled as an unused clock at boot-up. This can lead to failures in operation of above blocks, because they can not be configured properly if this clock is disabled. Signed-off-by: Abhilash Kesavan <redacted> Acked-by: Mike Turquette <redacted> [t.figa: Updated patch description.] Signed-off-by: Tomasz Figa <redacted> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/clk/samsung/clk-exynos5250.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/clk/samsung/clk-exynos5250.c
+++ b/drivers/clk/samsung/clk-exynos5250.c@@ -407,7 +407,8 @@ static struct samsung_gate_clock exynos5 GATE(hsi2c2, "hsi2c2", "aclk66", GATE_IP_PERIC, 30, 0, 0), GATE(hsi2c3, "hsi2c3", "aclk66", GATE_IP_PERIC, 31, 0, 0), GATE(chipid, "chipid", "aclk66", GATE_IP_PERIS, 0, 0, 0), - GATE(sysreg, "sysreg", "aclk66", GATE_IP_PERIS, 1, 0, 0), + GATE(sysreg, "sysreg", "aclk66", + GATE_IP_PERIS, 1, CLK_IGNORE_UNUSED, 0), GATE(pmu, "pmu", "aclk66", GATE_IP_PERIS, 2, CLK_IGNORE_UNUSED, 0), GATE(tzpc0, "tzpc0", "aclk66", GATE_IP_PERIS, 6, 0, 0), GATE(tzpc1, "tzpc1", "aclk66", GATE_IP_PERIS, 7, 0, 0),