Re: [PATCH v2 6/8] omapdss: Features: Fix some parameter ranges

[Tomi Valkeinen <tomi.valkeinen@ti.com>]

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On 2013-03-26 15:45, Archit Taneja wrote:
> Increase the DSS_FCLK and DSI_FCLK max supported frequencies, these come because
> some frequencies were increased from OMAP5 ES1 to OMAP5 ES2. We support only
> OMAP5 ES2 in the kernel, so replace the ES1 values with ES2 values. Increase the
> DSI PLL Fint range, this was previously just copied from the OMAP4 param range
> struct.
> 
> Fix the maximum DSS_FCLK on OMAP2, it's 133 Mhz according to the TRM.
> 
> Signed-off-by: Archit Taneja <archit@ti.com>
> ---
>  drivers/video/omap2/dss/dss_features.c |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
> index 7f791ae..77dbe0c 100644
> --- a/drivers/video/omap2/dss/dss_features.c
> +++ b/drivers/video/omap2/dss/dss_features.c
> @@ -414,7 +414,7 @@ static const char * const omap5_dss_clk_source_names[] = {
>  };
>  
>  static const struct dss_param_range omap2_dss_param_range[] = {
> -	[FEAT_PARAM_DSS_FCK]			= { 0, 173000000 },
> +	[FEAT_PARAM_DSS_FCK]			= { 0, 133000000 },
>  	[FEAT_PARAM_DSS_PCD]			= { 2, 255 },
>  	[FEAT_PARAM_DSIPLL_REGN]		= { 0, 0 },
>  	[FEAT_PARAM_DSIPLL_REGM]		= { 0, 0 },
> @@ -459,15 +459,15 @@ static const struct dss_param_range omap4_dss_param_range[] = {
>  };
>  
>  static const struct dss_param_range omap5_dss_param_range[] = {
> -	[FEAT_PARAM_DSS_FCK]			= { 0, 200000000 },
> +	[FEAT_PARAM_DSS_FCK]			= { 0, 209250000 },
>  	[FEAT_PARAM_DSS_PCD]			= { 1, 255 },
>  	[FEAT_PARAM_DSIPLL_REGN]		= { 0, (1 << 8) - 1 },
>  	[FEAT_PARAM_DSIPLL_REGM]		= { 0, (1 << 12) - 1 },
>  	[FEAT_PARAM_DSIPLL_REGM_DISPC]		= { 0, (1 << 5) - 1 },
>  	[FEAT_PARAM_DSIPLL_REGM_DSI]		= { 0, (1 << 5) - 1 },
> -	[FEAT_PARAM_DSIPLL_FINT]		= { 500000, 2500000 },
> +	[FEAT_PARAM_DSIPLL_FINT]		= { 150000, 52000000 },

Just a note, I think the PLL FINT range for OMAP3/4 may be wrong also.
Some TRMs mention the FINT range being up to 52MHz or so. I don't think
it's ever very clearly stated, though...

 Tomi



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