[PATCH] clk: ast2600: enable BCLK for PCI/PCIe bus always

Jae Hyun Yoo jae.hyun.yoo at linux.intel.com
Tue Jan 14 08:34:53 AEDT 2020


BCLK for PCI/PCIe bus should be enabled always with having the
CLK_IS_CRITICAL flag otherwise it will be disabled at kernel late
initcall phase as an unused clock, and eventually it causes
unexpected behavior on BMC features that are connected to the host
through PCI/PCIe bus.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo at linux.intel.com>
---
 drivers/clk/clk-ast2600.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk-ast2600.c b/drivers/clk/clk-ast2600.c
index 392d01705b97..42bfdc16bf7a 100644
--- a/drivers/clk/clk-ast2600.c
+++ b/drivers/clk/clk-ast2600.c
@@ -64,7 +64,7 @@ static const struct aspeed_gate_data aspeed_g6_gates[] = {
 	[ASPEED_CLK_GATE_GCLK]		= {  2,  7, "gclk-gate",	NULL,	 0 },	/* 2D engine */
 	/* vclk parent - dclk/d1clk/hclk/mclk */
 	[ASPEED_CLK_GATE_VCLK]		= {  3,  6, "vclk-gate",	NULL,	 0 },	/* Video Capture */
-	[ASPEED_CLK_GATE_BCLK]		= {  4,  8, "bclk-gate",	"bclk",	 0 }, /* PCIe/PCI */
+	[ASPEED_CLK_GATE_BCLK]		= {  4,  8, "bclk-gate",	"bclk",	 CLK_IS_CRITICAL }, /* PCIe/PCI */
 	/* From dpll */
 	[ASPEED_CLK_GATE_DCLK]		= {  5, -1, "dclk-gate",	NULL,	 CLK_IS_CRITICAL }, /* DAC */
 	[ASPEED_CLK_GATE_REF0CLK]	= {  6, -1, "ref0clk-gate",	"clkin", CLK_IS_CRITICAL },
-- 
2.17.1



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