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authorElaine Zhang <zhangqing@rock-chips.com>2020-09-14 10:23:16 +0800
committerHeiko Stuebner <heiko@sntech.de>2020-09-22 15:16:54 +0200
commit70d839e2761d22eba6facdb3b65faea4d57f355d (patch)
tree56429131e2c01edcec388186a4b9f5372c283f71 /drivers/clk/rockchip
parent4d98ed1e126495016f2a3ef4db6379855c4aacf2 (diff)
downloadlinux-70d839e2761d22eba6facdb3b65faea4d57f355d.tar.bz2
clk: rockchip: rk3399: Support module build
support CLK_OF_DECLARE and builtin_platform_driver_probe double clk init method. add module author, description and license to support building Soc Rk3399 clock driver as module. Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20200914022316.24045-1-zhangqing@rock-chips.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/clk/rockchip')
-rw-r--r--drivers/clk/rockchip/Kconfig2
-rw-r--r--drivers/clk/rockchip/clk-rk3399.c56
2 files changed, 57 insertions, 1 deletions
diff --git a/drivers/clk/rockchip/Kconfig b/drivers/clk/rockchip/Kconfig
index 524b0e0df0a7..47cd6c5de837 100644
--- a/drivers/clk/rockchip/Kconfig
+++ b/drivers/clk/rockchip/Kconfig
@@ -71,7 +71,7 @@ config CLK_RK3368
Build the driver for RK3368 Clock Driver.
config CLK_RK3399
- bool "Rockchip RK3399 clock controller support"
+ tristate "Rockchip RK3399 clock controller support"
default y
help
Build the driver for RK3399 Clock Driver.
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index ce1d2446f142..7df2f1e00347 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -5,9 +5,11 @@
*/
#include <linux/clk-provider.h>
+#include <linux/module.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/rk3399-cru.h>
@@ -1600,3 +1602,57 @@ static void __init rk3399_pmu_clk_init(struct device_node *np)
rockchip_clk_of_add_provider(np, ctx);
}
CLK_OF_DECLARE(rk3399_cru_pmu, "rockchip,rk3399-pmucru", rk3399_pmu_clk_init);
+
+struct clk_rk3399_inits {
+ void (*inits)(struct device_node *np);
+};
+
+static const struct clk_rk3399_inits clk_rk3399_pmucru_init = {
+ .inits = rk3399_pmu_clk_init,
+};
+
+static const struct clk_rk3399_inits clk_rk3399_cru_init = {
+ .inits = rk3399_clk_init,
+};
+
+static const struct of_device_id clk_rk3399_match_table[] = {
+ {
+ .compatible = "rockchip,rk3399-cru",
+ .data = &clk_rk3399_cru_init,
+ }, {
+ .compatible = "rockchip,rk3399-pmucru",
+ .data = &clk_rk3399_pmucru_init,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, clk_rk3399_match_table);
+
+static int __init clk_rk3399_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ const struct of_device_id *match;
+ const struct clk_rk3399_inits *init_data;
+
+ match = of_match_device(clk_rk3399_match_table, &pdev->dev);
+ if (!match || !match->data)
+ return -EINVAL;
+
+ init_data = match->data;
+ if (init_data->inits)
+ init_data->inits(np);
+
+ return 0;
+}
+
+static struct platform_driver clk_rk3399_driver = {
+ .driver = {
+ .name = "clk-rk3399",
+ .of_match_table = clk_rk3399_match_table,
+ .suppress_bind_attrs = true,
+ },
+};
+builtin_platform_driver_probe(clk_rk3399_driver, clk_rk3399_probe);
+
+MODULE_DESCRIPTION("Rockchip RK3399 Clock Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:clk-rk3399");