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From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com
Cc: lee.jones@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com,
	lgirdwood@gmail.com, broonie@kernel.org,
	gregkh@linuxfoundation.org, rafael@kernel.org,
	mturquette@baylibre.com, sboyd@kernel.org,
	linus.walleij@linaro.org, bgolaszewski@baylibre.com,
	sre@kernel.org, a.zummo@towertech.it,
	alexandre.belloni@bootlin.com, wim@linux-watchdog.org,
	linux@roeck-us.net, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org,
	mikko.mutanen@fi.rohmeurope.com,
	heikki.haikola@fi.rohmeurope.com
Subject: [RFC PATCH v1 06/13] clk: bd718x7: Support ROHM BD70528 clk block
Date: Tue, 22 Jan 2019 11:45:07 +0200
Message-ID: <ea98303c81c2637bfc023c02e89547ee2028140c.1548149337.git.matti.vaittinen@fi.rohmeurope.com> (raw)
In-Reply-To: <cover.1548149337.git.matti.vaittinen@fi.rohmeurope.com>

ROHM BD70528 is an ultra low power PMIC with similar 32K clk as
bd718x7. Only difference (from clk perspective) is register address.
Add support for controlling BD70528 clk using bd718x7 driver.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
 drivers/clk/Kconfig       |  6 +++---
 drivers/clk/clk-bd718x7.c | 21 +++++++++++++++++----
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index e5b2fe80eab4..992cfb86f2ca 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -285,10 +285,10 @@ config COMMON_CLK_STM32H7
 
 config COMMON_CLK_BD718XX
 	tristate "Clock driver for ROHM BD718x7 PMIC"
-	depends on MFD_ROHM_BD718XX
+	depends on MFD_ROHM_BD718XX || MFD_ROHM_BD70528
 	help
-	  This driver supports ROHM BD71837 and ROHM BD71847
-	  PMICs clock gates.
+	  This driver supports ROHM BD71837, ROHM BD71847 and
+	  ROHM BD70528 PMICs clock gates.
 
 source "drivers/clk/actions/Kconfig"
 source "drivers/clk/bcm/Kconfig"
diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c
index 461228ebf703..41c1374f4217 100644
--- a/drivers/clk/clk-bd718x7.c
+++ b/drivers/clk/clk-bd718x7.c
@@ -8,6 +8,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/mfd/rohm-bd718x7.h>
+#include <linux/mfd/rohm-bd70528.h>
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
 #include <linux/regmap.h>
@@ -86,9 +87,21 @@ static int bd71837_clk_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "No parent clk found\n");
 		return -EINVAL;
 	}
-
-	c->reg = BD718XX_REG_OUT32K;
-	c->mask = BD718XX_OUT32K_EN;
+	switch (mfd->chip_type) {
+	case ROHM_CHIP_TYPE_BD71837:
+	case ROHM_CHIP_TYPE_BD71847:
+
+		c->reg = BD718XX_REG_OUT32K;
+		c->mask = BD718XX_OUT32K_EN;
+		break;
+	case ROHM_CHIP_TYPE_BD70528:
+		c->reg = BD70528_REG_CLK_OUT;
+		c->mask = BD70528_CLK_OUT_EN_MASK;
+		break;
+	default:
+		dev_err(&pdev->dev, "Unknown clk chip\n");
+		return -EINVAL;
+	}
 	c->mfd = mfd;
 	c->pdev = pdev;
 	c->hw.init = &init;
@@ -119,5 +132,5 @@ static struct platform_driver bd71837_clk = {
 module_platform_driver(bd71837_clk);
 
 MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
-MODULE_DESCRIPTION("BD71837/BD71847 chip clk driver");
+MODULE_DESCRIPTION("BD71837/BD71847/BD70528 chip clk driver");
 MODULE_LICENSE("GPL");
-- 
2.14.3


-- 
Matti Vaittinen
ROHM Semiconductors

~~~ "I don't think so," said Rene Descartes.  Just then, he vanished ~~~

  parent reply index

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-22  9:41 [RFC PATCH v1 00/13] support ROHM BD70528 PMIC Matti Vaittinen
2019-01-22  9:42 ` [RFC PATCH v1 01/13] regmap: regmap-irq: Add main status register support Matti Vaittinen
2019-01-23 15:55   ` Mark Brown
2019-01-22  9:42 ` [RFC PATCH v1 02/13] mfd: bd718x7.h split to ROHM common and bd718x7 specific parts Matti Vaittinen
2019-01-22  9:43 ` [RFC PATCH v1 03/13] regulator: bd718x7 use chip specific and generic data structs Matti Vaittinen
2019-01-23 15:51   ` Mark Brown
2019-01-24  7:16     ` Matti Vaittinen
2019-01-24 10:24       ` Mark Brown
2019-01-22  9:44 ` [RFC PATCH v1 04/13] clk: bd718x7: " Matti Vaittinen
2019-01-22  9:44 ` [RFC PATCH v1 05/13] mfd: bd70528: Support ROHM bd70528 PMIC - core Matti Vaittinen
2019-01-22 14:51   ` Guenter Roeck
2019-01-22 16:20     ` Matti Vaittinen
2019-01-22  9:45 ` Matti Vaittinen [this message]
2019-01-22  9:45 ` [RFC PATCH v1 07/13] devicetree: bindings: Document first ROHM BD70528 bindings Matti Vaittinen
2019-02-23  0:30   ` Rob Herring
2019-02-28  6:49     ` Matti Vaittinen
2019-02-28 15:37       ` Rob Herring
2019-01-22  9:46 ` [RFC PATCH v1 08/13] regulator: bd70528: Support ROHM BD70528 regulator block Matti Vaittinen
2019-01-22  9:46 ` [RFC PATCH v1 09/13] devicetree: bindings: ROHM bd70528 regulator bindings Matti Vaittinen
2019-01-22  9:47 ` [RFC PATCH v1 10/13] gpio: Initial support for ROHM bd70528 GPIO block Matti Vaittinen
2019-01-22  9:47 ` [RFC PATCH v1 11/13] rtc: bd70528: Initial support for ROHM bd70528 RTC Matti Vaittinen
2019-01-22 14:48   ` Guenter Roeck
2019-01-22 16:29     ` Matti Vaittinen
2019-01-22  9:48 ` [RFC PATCH v1 12/13] power: supply: Initial support for ROHM BD70528 PMIC charger block Matti Vaittinen
2019-01-22  9:48 ` [RFC PATCH v1 13/13] watchdog: bd70528: Initial support for ROHM BD70528 watchdog block Matti Vaittinen
2019-01-22 15:47   ` Guenter Roeck
2019-01-22 17:10     ` Matti Vaittinen
2019-01-22 17:40       ` Guenter Roeck
2019-01-22 18:03         ` Matti Vaittinen
2019-01-23 17:47           ` Sebastian Reichel
2019-01-24 10:44             ` Matti Vaittinen
2019-01-24 14:37               ` Guenter Roeck

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