| Message ID | 20160108095917.32335.11094.stgit@localhost (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
+ Srini On 8 January 2016 at 10:59, Martin Fuzzey <mfuzzey@parkeon.com> wrote: > The clock subsystem now allows clock rates and parents to be configured > in the device tree. > > This requires calling of_clk_set_defaults() which is done automatically > for platform, i2c, spi devices. Since pwrseq_simple does not fit into > those catagories we must do it ourself. > > With this patch the standard assigned-clocks, assigned-clock-rates, > assigned-clock-parents DT properties to be used in pwrseq_simple nodes. I believe this should be solved when we have converted the each pwrseq method to become a platform driver. This is being worked on by Srinivas Kandagatla. http://www.spinics.net/lists/arm-kernel/msg475605.html Kind regards Ulf Hansson > > Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com> > --- > drivers/mmc/core/pwrseq_simple.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c > index 4d2962b..fd8f38e 100644 > --- a/drivers/mmc/core/pwrseq_simple.c > +++ b/drivers/mmc/core/pwrseq_simple.c > @@ -8,6 +8,7 @@ > * Simple MMC power sequence management > */ > #include <linux/clk.h> > +#include <linux/clk/clk-conf.h> > #include <linux/kernel.h> > #include <linux/slab.h> > #include <linux/device.h> > @@ -108,6 +109,10 @@ struct mmc_pwrseq *mmc_pwrseq_simple_alloc(struct mmc_host *host, > if (!pwrseq) > return ERR_PTR(-ENOMEM); > > + ret = of_clk_set_defaults(dev->of_node, false); > + if (ret) > + goto free; > + > pwrseq->ext_clk = clk_get(dev, "ext_clock"); > if (IS_ERR(pwrseq->ext_clk) && > PTR_ERR(pwrseq->ext_clk) != -ENOENT) { >
diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c index 4d2962b..fd8f38e 100644 --- a/drivers/mmc/core/pwrseq_simple.c +++ b/drivers/mmc/core/pwrseq_simple.c @@ -8,6 +8,7 @@ * Simple MMC power sequence management */ #include <linux/clk.h> +#include <linux/clk/clk-conf.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/device.h> @@ -108,6 +109,10 @@ struct mmc_pwrseq *mmc_pwrseq_simple_alloc(struct mmc_host *host, if (!pwrseq) return ERR_PTR(-ENOMEM); + ret = of_clk_set_defaults(dev->of_node, false); + if (ret) + goto free; + pwrseq->ext_clk = clk_get(dev, "ext_clock"); if (IS_ERR(pwrseq->ext_clk) && PTR_ERR(pwrseq->ext_clk) != -ENOENT) {
The clock subsystem now allows clock rates and parents to be configured in the device tree. This requires calling of_clk_set_defaults() which is done automatically for platform, i2c, spi devices. Since pwrseq_simple does not fit into those catagories we must do it ourself. With this patch the standard assigned-clocks, assigned-clock-rates, assigned-clock-parents DT properties to be used in pwrseq_simple nodes. Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com> --- drivers/mmc/core/pwrseq_simple.c | 5 +++++ 1 file changed, 5 insertions(+)