clk: bd718x7: Add support for clk gate on ROHM BD71815 PMIC

ROHM BD71815 also provide clk signal for RTC. Add control
for gating this clock.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c
index 17d90e0..d9e70e5 100644 (file)
--- a/drivers/clk/clk-bd718x7.c
+++ b/drivers/clk/clk-bd718x7.c
@@ -13,6 +13,8 @@
 #include <linux/regmap.h>
 
 /* clk control registers */
+/* BD71815 */
+#define BD71815_REG_OUT32K     0x1d
 /* BD70528 */
 #define BD70528_REG_OUT32K     0x2c
 /* BD71828 */
@@ -118,6 +120,10 @@ static int bd71837_clk_probe(struct platform_device *pdev)
                c->reg = BD70528_REG_OUT32K;
                c->mask = CLK_OUT_EN_MASK;
                break;
+       case ROHM_CHIP_TYPE_BD71815:
+               c->reg = BD71815_REG_OUT32K;
+               c->mask = CLK_OUT_EN_MASK;
+               break;
        default:
                dev_err(&pdev->dev, "Unknown clk chip\n");
                return -EINVAL;
@@ -146,6 +152,7 @@ static const struct platform_device_id bd718x7_clk_id[] = {
        { "bd71847-clk", ROHM_CHIP_TYPE_BD71847 },
        { "bd70528-clk", ROHM_CHIP_TYPE_BD70528 },
        { "bd71828-clk", ROHM_CHIP_TYPE_BD71828 },
+       { "bd71815-clk", ROHM_CHIP_TYPE_BD71815 },
        { },
 };
 MODULE_DEVICE_TABLE(platform, bd718x7_clk_id);
@@ -161,6 +168,6 @@ static struct platform_driver bd71837_clk = {
 module_platform_driver(bd71837_clk);
 
 MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
-MODULE_DESCRIPTION("BD71837/BD71847/BD70528 chip clk driver");
+MODULE_DESCRIPTION("BD718(15/18/28/37/47/50) and BD70528 chip clk driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:bd718xx-clk");