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From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com
Cc: Lee Jones <lee.jones@linaro.org>,
	Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
	Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Nicholas Mc Guire <hofrat@osadl.org>,
	Phil Edworthy <phil.edworthy@renesas.com>,
	linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org,
	linux-rtc@vger.kernel.org
Subject: [PATCH v5 07/16] clk: bd718x7: Support ROHM BD71828 clk block
Date: Mon, 18 Nov 2019 08:56:51 +0200	[thread overview]
Message-ID: <a26e1996361a3f67474303369565f4ddc2ff77b3.1574059625.git.matti.vaittinen@fi.rohmeurope.com> (raw)
In-Reply-To: <cover.1574059625.git.matti.vaittinen@fi.rohmeurope.com>

BD71828GW is a single-chip power management IC for battery-powered portable
devices. Add support for controlling BD71828 clk using bd718x7 driver.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---

No changes from v4

 drivers/clk/Kconfig              |  6 ++---
 drivers/clk/clk-bd718x7.c        | 38 +++++++++++++++++++++++---------
 include/linux/mfd/rohm-bd70528.h |  6 -----
 include/linux/mfd/rohm-bd71828.h |  4 ----
 include/linux/mfd/rohm-bd718x7.h |  6 -----
 5 files changed, 31 insertions(+), 29 deletions(-)

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index c44247d0b83e..71c5dfdc78f4 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -293,10 +293,10 @@ config COMMON_CLK_STM32H7
 	  Support for stm32h7 SoC family clocks
 
 config COMMON_CLK_BD718XX
-	tristate "Clock driver for ROHM BD718x7 PMIC"
-	depends on MFD_ROHM_BD718XX || MFD_ROHM_BD70528
+	tristate "Clock driver for 32K clk gates on ROHM PMICs"
+	depends on MFD_ROHM_BD718XX || MFD_ROHM_BD70528 || MFD_ROHM_BD71828
 	help
-	  This driver supports ROHM BD71837, ROHM BD71847 and
+	  This driver supports ROHM BD71837, ROHM BD71847, ROHM BD71828 and
 	  ROHM BD70528 PMICs clock gates.
 
 config COMMON_CLK_FIXED_MMIO
diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c
index 1c1764f74d0a..853f484b758a 100644
--- a/drivers/clk/clk-bd718x7.c
+++ b/drivers/clk/clk-bd718x7.c
@@ -7,12 +7,25 @@
 #include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
-#include <linux/mfd/rohm-bd718x7.h>
-#include <linux/mfd/rohm-bd70528.h>
+#include <linux/mfd/rohm-generic.h>
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
 #include <linux/regmap.h>
 
+/* clk control registers */
+/* BD70528 */
+#define BD70528_REG_OUT32K	0x2c
+/* BD71828 */
+#define BD71828_REG_OUT32K	0x4B
+/* BD71837 and BD71847 */
+#define BD718XX_REG_OUT32K	0x2E
+
+/*
+ * BD71837, BD71847, BD70528 and BD71828 all use bit [0] to clk output control
+ */
+#define CLK_OUT_EN_MASK		BIT(0)
+
+
 struct bd718xx_clk {
 	struct clk_hw hw;
 	u8 reg;
@@ -21,10 +34,8 @@ struct bd718xx_clk {
 	struct rohm_regmap_dev *mfd;
 };
 
-static int bd71837_clk_set(struct clk_hw *hw, int status)
+static int bd71837_clk_set(struct bd718xx_clk *c, unsigned int status)
 {
-	struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw);
-
 	return regmap_update_bits(c->mfd->regmap, c->reg, c->mask, status);
 }
 
@@ -33,14 +44,16 @@ static void bd71837_clk_disable(struct clk_hw *hw)
 	int rv;
 	struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw);
 
-	rv = bd71837_clk_set(hw, 0);
+	rv = bd71837_clk_set(c, 0);
 	if (rv)
 		dev_dbg(&c->pdev->dev, "Failed to disable 32K clk (%d)\n", rv);
 }
 
 static int bd71837_clk_enable(struct clk_hw *hw)
 {
-	return bd71837_clk_set(hw, 1);
+	struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw);
+
+	return bd71837_clk_set(c, 0xffffffff);
 }
 
 static int bd71837_clk_is_enabled(struct clk_hw *hw)
@@ -92,11 +105,15 @@ static int bd71837_clk_probe(struct platform_device *pdev)
 	case ROHM_CHIP_TYPE_BD71837:
 	case ROHM_CHIP_TYPE_BD71847:
 		c->reg = BD718XX_REG_OUT32K;
-		c->mask = BD718XX_OUT32K_EN;
+		c->mask = CLK_OUT_EN_MASK;
+		break;
+	case ROHM_CHIP_TYPE_BD71828:
+		c->reg = BD71828_REG_OUT32K;
+		c->mask = CLK_OUT_EN_MASK;
 		break;
 	case ROHM_CHIP_TYPE_BD70528:
-		c->reg = BD70528_REG_CLK_OUT;
-		c->mask = BD70528_CLK_OUT_EN_MASK;
+		c->reg = BD70528_REG_OUT32K;
+		c->mask = CLK_OUT_EN_MASK;
 		break;
 	default:
 		dev_err(&pdev->dev, "Unknown clk chip\n");
@@ -126,6 +143,7 @@ static const struct platform_device_id bd718x7_clk_id[] = {
 	{ "bd71837-clk", ROHM_CHIP_TYPE_BD71837 },
 	{ "bd71847-clk", ROHM_CHIP_TYPE_BD71847 },
 	{ "bd70528-clk", ROHM_CHIP_TYPE_BD70528 },
+	{ "bd71828-clk", ROHM_CHIP_TYPE_BD71828 },
 	{ },
 };
 MODULE_DEVICE_TABLE(platform, bd718x7_clk_id);
diff --git a/include/linux/mfd/rohm-bd70528.h b/include/linux/mfd/rohm-bd70528.h
index 1013e60c5b25..2ad2320d0a96 100644
--- a/include/linux/mfd/rohm-bd70528.h
+++ b/include/linux/mfd/rohm-bd70528.h
@@ -89,10 +89,6 @@ struct bd70528_data {
 #define BD70528_REG_GPIO3_OUT	0x52
 #define BD70528_REG_GPIO4_OUT	0x54
 
-/* clk control */
-
-#define BD70528_REG_CLK_OUT	0x2c
-
 /* RTC */
 
 #define BD70528_REG_RTC_COUNT_H		0x2d
@@ -309,8 +305,6 @@ enum {
 
 #define BD70528_GPIO_IN_STATE_BASE 1
 
-#define BD70528_CLK_OUT_EN_MASK 0x1
-
 /* RTC masks to mask out reserved bits */
 
 #define BD70528_MASK_RTC_SEC		0x7f
diff --git a/include/linux/mfd/rohm-bd71828.h b/include/linux/mfd/rohm-bd71828.h
index eb0557eb5314..d013e03f742d 100644
--- a/include/linux/mfd/rohm-bd71828.h
+++ b/include/linux/mfd/rohm-bd71828.h
@@ -183,9 +183,6 @@ enum {
 #define BD71828_REG_CHG_STATE		0x65
 #define BD71828_REG_CHG_FULL		0xd2
 
-/* CLK */
-#define BD71828_REG_OUT32K		0x4B
-
 /* LEDs */
 #define BD71828_REG_LED_CTRL		0x4A
 #define BD71828_MASK_LED_AMBER		0x80
@@ -417,7 +414,6 @@ enum {
 #define BD71828_INT_RTC1_MASK				0x2
 #define BD71828_INT_RTC2_MASK				0x4
 
-#define BD71828_OUT32K_EN				0x1
 #define BD71828_OUT_TYPE_MASK				0x2
 #define BD71828_OUT_TYPE_OPEN_DRAIN			0x0
 #define BD71828_OUT_TYPE_CMOS				0x2
diff --git a/include/linux/mfd/rohm-bd718x7.h b/include/linux/mfd/rohm-bd718x7.h
index 7f2dbde402a1..bee2474a8f9f 100644
--- a/include/linux/mfd/rohm-bd718x7.h
+++ b/include/linux/mfd/rohm-bd718x7.h
@@ -191,12 +191,6 @@ enum {
 #define IRQ_ON_REQ		0x02
 #define IRQ_STBY_REQ		0x01
 
-/* BD718XX_REG_OUT32K bits */
-#define BD718XX_OUT32K_EN	0x01
-
-/* BD7183XX gated clock rate */
-#define BD718XX_CLK_RATE 32768
-
 /* ROHM BD718XX irqs */
 enum {
 	BD718XX_INT_STBY_REQ,
-- 
2.21.0


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =] 

  parent reply	other threads:[~2019-11-18  6:57 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-18  6:53 [PATCH v5 00/16] Support ROHM BD71828 PMIC Matti Vaittinen
2019-11-18  6:53 ` [PATCH v5 01/16] dt-bindings: regulator: Document ROHM BD71282 regulator bindings Matti Vaittinen
2019-11-18 16:25   ` Mark Brown
2019-11-18 18:03     ` Vaittinen, Matti
2019-11-19 18:13       ` Mark Brown
2019-11-19 18:51         ` Vaittinen, Matti
2019-11-19 19:36           ` Mark Brown
2019-11-29  7:48             ` Vaittinen, Matti
2019-11-29 12:09               ` Mark Brown
2019-12-02  7:57                 ` Vaittinen, Matti
2019-12-02 13:11                   ` Mark Brown
2019-12-02 14:02                     ` Vaittinen, Matti
2019-12-04 12:47                       ` Mark Brown
2019-12-04 13:13                         ` Vaittinen, Matti
2019-12-04 14:14                           ` Mark Brown
2019-12-10 10:39                             ` Vaittinen, Matti
2019-12-10 11:14                 ` Vaittinen, Matti
2019-12-10 12:11                   ` Mark Brown
2019-12-10 12:41                     ` Vaittinen, Matti
2019-12-10 12:45                       ` Mark Brown
2019-12-10 13:07                         ` Vaittinen, Matti
2019-11-22 22:48   ` Rob Herring
2019-11-18  6:54 ` [PATCH v5 02/16] dt-bindings: leds: ROHM BD71282 PMIC LED driver Matti Vaittinen
2019-11-22 23:00   ` Rob Herring
2019-11-18  6:54 ` [PATCH v5 03/16] dt-bindings: mfd: Document ROHM BD71828 bindings Matti Vaittinen
2019-11-22 23:05   ` Rob Herring
2019-11-18  6:55 ` [PATCH v5 04/16] mfd: rohm PMICs - use platform_device_id to match MFD sub-devices Matti Vaittinen
2019-11-18  6:55 ` [PATCH v5 05/16] mfd: bd71828: Support ROHM BD71828 PMIC - core Matti Vaittinen
2019-11-18  6:56 ` [PATCH v5 06/16] mfd: input: bd71828: Add power-key support Matti Vaittinen
2019-11-18  6:56 ` Matti Vaittinen [this message]
2019-11-18  6:57 ` [PATCH v5 08/16] regulator: bd718x7: Split driver to common and bd718x7 specific parts Matti Vaittinen
2019-11-18  6:57 ` [PATCH v5 09/16] regulator: bd71828: Basic support for ROHM bd71828 PMIC regulators Matti Vaittinen
2019-11-18 16:20   ` Mark Brown
2019-11-19  9:12     ` Vaittinen, Matti
2019-11-18  6:58 ` [PATCH v5 10/16] gpio: devres: Add devm_gpiod_get_parent_array Matti Vaittinen
2019-11-19 14:43   ` Linus Walleij
2019-11-19 17:54     ` Vaittinen, Matti
2019-11-21 14:13       ` Linus Walleij
2019-11-18  6:59 ` [PATCH v5 11/16] docs: driver-model: Add missing managed GPIO array get functions Matti Vaittinen
2019-11-18  6:59 ` [PATCH v5 12/16] regulator: bd71828: Add GPIO based run-level control for regulators Matti Vaittinen
2019-11-18  7:00 ` [PATCH v5 13/16] rtc: bd70528 add BD71828 support Matti Vaittinen
2019-12-10 13:24   ` Alexandre Belloni
2019-11-18  7:01 ` [PATCH v5 14/16] gpio: bd71828: Initial support for ROHM BD71828 PMIC GPIOs Matti Vaittinen
2019-11-18  9:22   ` Bartosz Golaszewski
2019-11-18  7:03 ` [PATCH v5 15/16] leds: Add common LED binding parsing support to LED class/core Matti Vaittinen
2019-11-18 21:55   ` Jacek Anaszewski
2019-11-19  7:21     ` Vaittinen, Matti
2019-11-19 19:30       ` Jacek Anaszewski
2019-11-20  7:31         ` Vaittinen, Matti
2019-11-19 14:23   ` Vaittinen, Matti
2019-11-18  7:03 ` [PATCH v5 16/16] led: bd71828: Support LED outputs on ROHM BD71828 PMIC Matti Vaittinen

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