Re: [PATCH 1/6] media: camss: csiphy-3ph: Add support for SDM630/660

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Hi Angelo,

On Sun, 18 Oct 2020 at 14:52, <kholk11@xxxxxxxxx> wrote:
>
> From: AngeloGioacchino Del Regno <kholk11@xxxxxxxxx>
>
> The CSIPHY on SDM630/660 needs a slightly longer T_HS_CLK_MISS
> configuration on lanes CFG4.
>
> Signed-off-by: AngeloGioacchino Del Regno <kholk11@xxxxxxxxx>
> ---
>  drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> index 2e65caf1ecae..97cb9de85031 100644
> --- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> +++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> @@ -8,6 +8,7 @@
>   * Copyright (C) 2016-2018 Linaro Ltd.
>   */
>
> +#include "camss.h"
>  #include "camss-csiphy.h"
>
>  #include <linux/delay.h>
> @@ -21,6 +22,7 @@
>  #define CSIPHY_3PH_LNn_CFG3(n)                 (0x008 + 0x100 * (n))
>  #define CSIPHY_3PH_LNn_CFG4(n)                 (0x00c + 0x100 * (n))
>  #define CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS      0xa4
> +#define CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS_660  0xa5
>  #define CSIPHY_3PH_LNn_CFG5(n)                 (0x010 + 0x100 * (n))
>  #define CSIPHY_3PH_LNn_CFG5_T_HS_DTERM         0x02
>  #define CSIPHY_3PH_LNn_CFG5_HS_REC_EQ_FQ_INT   0x50
> @@ -198,7 +200,10 @@ static void csiphy_lanes_enable(struct csiphy_device *csiphy,
>         val = CSIPHY_3PH_LNn_CFG1_SWI_REC_DLY_PRG;
>         writel_relaxed(val, csiphy->base + CSIPHY_3PH_LNn_CFG1(l));
>
> -       val = CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS;
> +       if (csiphy->camss->version == CAMSS_660)

The CAMSS_660 enum is not defined until patch #4, so building fails
here. I expect to see this issue in a few other places, but I'll
refrain from pointing them all out.

> +               val = CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS_660;
> +       else
> +               val = CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS;
>         writel_relaxed(val, csiphy->base + CSIPHY_3PH_LNn_CFG4(l));
>
>         val = CSIPHY_3PH_LNn_MISC1_IS_CLKLANE;
> --
> 2.28.0
>



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