Hi Peppe/Maxime,
I missed a comment... :-)
On 07/03/14 09:41, Maxime COQUELIN wrote:
> From: Giuseppe Cavallaro <peppe.cavallaro@xxxxxx>
>
> This patch adds a new logic inside the st pinctrl to manage
> an unsupported scenario: some sysconfig are not available!
>
> This is the case of STiH407 where, although documented, the
> following registers from SYSCFG_FLASH have been removed from the SoC.
>
> SYSTEM_CONFIG3040
> Output Enable pad control for all PIO Alternate Functions
> and
> SYSTEM_ CONFIG3050
> Pull Up pad control for all PIO Alternate Functions
>
> Without managing this condition an imprecise external abort
> will be detect.
>
> To do this the patch also reviews the st_parse_syscfgs
> and other routines to manipulate the registers only if
> actually available.
> In any case, for example the st_parse_syscfgs detected
> an error condition but no action was made in the
> st_pctl_probe_dt.
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@xxxxxx>
> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@xxxxxx>
> ---
> drivers/pinctrl/pinctrl-st.c | 121 +++++++++++++++++++++++++++----------------
> 1 file changed, 75 insertions(+), 46 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
> index 9e9b6ea..d1886b4 100644
> --- a/drivers/pinctrl/pinctrl-st.c
> +++ b/drivers/pinctrl/pinctrl-st.c
> @@ -390,6 +390,19 @@ static const struct st_pctl_data stih416_data = {
> .alt = 0, .oe = 40, .pu = 50, .od = 60, .rt = 100,
> };
>
> +static const struct st_pctl_data stih407_flashdata = {
> + .rt_style = st_retime_style_none,
> + .input_delays = stih416_delays,
> + .ninput_delays = 14,
> + .output_delays = stih416_delays,
> + .noutput_delays = 14,
> + .alt = 0,
> + .oe = -1, /* Not Available */
> + .pu = -1, /* Not Available */
> + .od = 60,
> + .rt = 100,
> +};
> +
I think this stih407_flashdata go with the previous patch "pinctrl: st:
add pinctrl support for the STiH407 SoC"
So that this patch just adds new checks to pinctrl-driver and not
stih407 related stuff.
Other than that the patch looks good to me.
> }
>
> /*
> @@ -1583,7 +1612,7 @@ static struct of_device_id st_pctl_of_match[] = {
> { .compatible = "st,stih407-sbc-pinctrl", .data = &stih416_data},
> { .compatible = "st,stih407-front-pinctrl", .data = &stih416_data},
> { .compatible = "st,stih407-rear-pinctrl", .data = &stih416_data},
> - { .compatible = "st,stih407-flash-pinctrl", .data = &stih416_data},
> + { .compatible = "st,stih407-flash-pinctrl", .data = &stih407_flashdata},
Same as first comment.
> { /* sentinel */ }
> };
>
>
Thanks,
srini
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