From 2083da24eb56ce622332946800a67a7449d85fe5 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 10 Jun 2022 12:02:04 +0530 Subject: OPP: Allow multiple clocks for a device This patch adds support to allow multiple clocks for a device. The design is pretty much similar to how this is done for regulators, and platforms can supply their own version of the config_clks() callback if they have multiple clocks for their device. The core manages the calls via opp_table->config_clks() eventually. We have kept both "clk" and "clks" fields in the OPP table structure and the reason is provided as a comment in _opp_set_clknames(). The same isn't done for "rates" though and we use rates[0] at most of the places now. Co-developed-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Tested-by: Jon Hunter Tested-by: Dmitry Osipenko Tested-by: Manivannan Sadhasivam Signed-off-by: Viresh Kumar --- include/linux/pm_opp.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 50cbc75bef71..104151dfe46c 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -61,9 +61,13 @@ typedef int (*config_regulators_t)(struct device *dev, struct dev_pm_opp *old_opp, struct dev_pm_opp *new_opp, struct regulator **regulators, unsigned int count); +typedef int (*config_clks_t)(struct device *dev, struct opp_table *opp_table, + struct dev_pm_opp *opp, void *data, bool scaling_down); + /** * struct dev_pm_opp_config - Device OPP configuration values - * @clk_names: Clk names, NULL terminated array, max 1 clock for now. + * @clk_names: Clk names, NULL terminated array. + * @config_clks: Custom set clk helper. * @prop_name: Name to postfix to properties. * @config_regulators: Custom set regulator helper. * @supported_hw: Array of hierarchy of versions to match. @@ -78,6 +82,7 @@ typedef int (*config_regulators_t)(struct device *dev, struct dev_pm_opp_config { /* NULL terminated */ const char * const *clk_names; + config_clks_t config_clks; const char *prop_name; config_regulators_t config_regulators; const unsigned int *supported_hw; -- cgit