Re: [PATCH] clk:aspeed: Fix reset bits for PCI/VGA and PECI

From: Rob Herring
Date: Tue May 01 2018 - 11:02:44 EST


On Thu, Apr 26, 2018 at 10:22:32AM -0700, Jae Hyun Yoo wrote:
> This commit fixes incorrect setting of reset bits for PCI/VGA and
> PECI modules.
>
> 1. Reset bit for PCI/VGA is 8.
> 2. PECI reset bit is missing so added bit 10 as its reset bit.
>
> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@xxxxxxxxxxxxxxx>
> Fixes: 15ed8ce5f84e ("clk: aspeed: Register gated clocks")
> Cc: stable <stable@xxxxxxxxxxxxxxx>
> ---
> drivers/clk/clk-aspeed.c | 4 ++--
> include/dt-bindings/clock/aspeed-clock.h | 2 +-
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/clk/clk-aspeed.c b/drivers/clk/clk-aspeed.c
> index 5eb50c31e455..2c23e7d7ba28 100644
> --- a/drivers/clk/clk-aspeed.c
> +++ b/drivers/clk/clk-aspeed.c
> @@ -88,7 +88,7 @@ static const struct aspeed_gate_data aspeed_gates[] = {
> [ASPEED_CLK_GATE_GCLK] = { 1, 7, "gclk-gate", NULL, 0 }, /* 2D engine */
> [ASPEED_CLK_GATE_MCLK] = { 2, -1, "mclk-gate", "mpll", CLK_IS_CRITICAL }, /* SDRAM */
> [ASPEED_CLK_GATE_VCLK] = { 3, 6, "vclk-gate", NULL, 0 }, /* Video Capture */
> - [ASPEED_CLK_GATE_BCLK] = { 4, 10, "bclk-gate", "bclk", 0 }, /* PCIe/PCI */
> + [ASPEED_CLK_GATE_BCLK] = { 4, 8, "bclk-gate", "bclk", 0 }, /* PCIe/PCI */
> [ASPEED_CLK_GATE_DCLK] = { 5, -1, "dclk-gate", NULL, 0 }, /* DAC */
> [ASPEED_CLK_GATE_REFCLK] = { 6, -1, "refclk-gate", "clkin", CLK_IS_CRITICAL },
> [ASPEED_CLK_GATE_USBPORT2CLK] = { 7, 3, "usb-port2-gate", NULL, 0 }, /* USB2.0 Host port 2 */
> @@ -297,7 +297,7 @@ static const u8 aspeed_resets[] = {
> [ASPEED_RESET_JTAG_MASTER] = 22,
> [ASPEED_RESET_MIC] = 18,
> [ASPEED_RESET_PWM] = 9,
> - [ASPEED_RESET_PCIVGA] = 8,
> + [ASPEED_RESET_PECI] = 10,
> [ASPEED_RESET_I2C] = 2,
> [ASPEED_RESET_AHB] = 1,
> };
> diff --git a/include/dt-bindings/clock/aspeed-clock.h b/include/dt-bindings/clock/aspeed-clock.h
> index d3558d897a4d..8d69b9134bef 100644
> --- a/include/dt-bindings/clock/aspeed-clock.h
> +++ b/include/dt-bindings/clock/aspeed-clock.h
> @@ -45,7 +45,7 @@
> #define ASPEED_RESET_JTAG_MASTER 3
> #define ASPEED_RESET_MIC 4
> #define ASPEED_RESET_PWM 5
> -#define ASPEED_RESET_PCIVGA 6
> +#define ASPEED_RESET_PECI 6

You can't really be changing these as they represent an ABI.

Is there no PCIVGA reset?

> #define ASPEED_RESET_I2C 7
> #define ASPEED_RESET_AHB 8
>
> --
> 2.17.0
>