On Thu, Feb 07, 2019 at 04:19:31PM +0530, Amit Kucheria wrote:
> On some TSENS IP, version is stored. Print that version at init.
>
> Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
> ---
> drivers/thermal/qcom/tsens-common.c | 23 ++++++++++++++++++++++-
> 1 file changed, 22 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c
> index aae3d71d7eed..39cd5733fd44 100644
> --- a/drivers/thermal/qcom/tsens-common.c
> +++ b/drivers/thermal/qcom/tsens-common.c
> @@ -121,7 +121,7 @@ int __init init_common(struct tsens_priv *priv)
> void __iomem *tm_base, *srot_base;
> struct device *dev = priv->dev;
> struct resource *res;
> - u32 enabled;
> + u32 enabled, maj_ver, min_ver;
> int ret, i, j;
> struct platform_device *op = of_find_device_by_node(priv->dev->of_node);
>
> @@ -155,6 +155,27 @@ int __init init_common(struct tsens_priv *priv)
> if (IS_ERR(priv->tm_map))
> return PTR_ERR(priv->tm_map);
>
> + for (i = 0; i < MAX_REGFIELDS; i++) {
> + priv->rf[i] = NULL;
> + }
> +
> + /* alloc regmap_fields in srot_map */
> + if (priv->feat->ver_info) {
> + for (i = 0, j = VER_MAJOR; i < 2; i++, j++) {
> + priv->rf[j] = devm_regmap_field_alloc(dev, priv->srot_map,
> + priv->fields[j]);
> + if (IS_ERR(priv->rf[j]))
> + return PTR_ERR(priv->rf[j]);
> + }
> + ret = regmap_field_read(priv->rf[VER_MAJOR], &maj_ver);
> + if (ret)
> + return ret;
> + ret = regmap_field_read(priv->rf[VER_MINOR], &min_ver);
> + if (ret)
> + return ret;
> + dev_info(dev, "version: %d.%d\n", maj_ver, min_ver);
Is this really needed? Printing stuff into kernel log during boot can
just add a lot of info that ends up just slowing down things. Besides,
if this info is important shouldnt be available somewhere else as the
kernel log is a circular buffer and eventually that line will get
wrapped up?
> + }
> +
> priv->rf[TSENS_EN] = devm_regmap_field_alloc(dev, priv->srot_map,
> priv->fields[TSENS_EN]);
> if (IS_ERR(priv->rf[TSENS_EN]))
> --
> 2.17.1
>
