diff options
| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2025-08-20 21:23:19 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2025-09-12 18:06:29 +0200 |
| commit | 6229b35298af8c3cb983d866e9da1c1ad4803cc6 (patch) | |
| tree | ceff8ce3918165f9b87d8aab6b7ebe4426869f78 | |
| parent | 19f7eaec4d9d1dcd8b49e14dbad56a65810c2910 (diff) | |
watchdog: rzv2h: Make "oscclk" and reset controller optional
Update the rzv2h_wdt driver to make the "oscclk" clock and reset
controller optional.
Use devm_clk_get_optional_prepared() to obtain the "oscclk" clock,
allowing the driver to work on platforms that do not provide this clock,
such as the RZ/T2H SoC.
Similarly, use devm_reset_control_get_optional_exclusive() to allow the
driver to function on platforms that lack a reset controller.
These changes are preparatory steps for supporting the RZ/T2H SoC, which
does not provide an "oscclk" clock or a reset controller.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
| -rw-r--r-- | drivers/watchdog/rzv2h_wdt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/watchdog/rzv2h_wdt.c b/drivers/watchdog/rzv2h_wdt.c index 755067800ebb..3c02960b65cf 100644 --- a/drivers/watchdog/rzv2h_wdt.c +++ b/drivers/watchdog/rzv2h_wdt.c @@ -230,11 +230,11 @@ static int rzv2h_wdt_probe(struct platform_device *pdev) if (IS_ERR(priv->pclk)) return dev_err_probe(dev, PTR_ERR(priv->pclk), "no pclk"); - priv->oscclk = devm_clk_get_prepared(dev, "oscclk"); + priv->oscclk = devm_clk_get_optional_prepared(dev, "oscclk"); if (IS_ERR(priv->oscclk)) return dev_err_probe(dev, PTR_ERR(priv->oscclk), "no oscclk"); - priv->rstc = devm_reset_control_get_exclusive(dev, NULL); + priv->rstc = devm_reset_control_get_optional_exclusive(dev, NULL); if (IS_ERR(priv->rstc)) return dev_err_probe(dev, PTR_ERR(priv->rstc), "failed to get cpg reset"); |