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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-15 20:18:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-15 20:18:40 -0700
commit8de262531f5fbb7458463224a7587429800c24bf (patch)
treec95d1d2bdeaff95cea17982f1c0e1e552591e40f /drivers/clk/clk-rk808.c
parentbe8454afc50f43016ca8b6130d9673bdd0bd56ec (diff)
parent7efd105c27fd2323789b41b64763a0e33ed79c08 (diff)
downloadlinux-8de262531f5fbb7458463224a7587429800c24bf.tar.gz
Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
 "Core Frameworks:
   - Set 'struct device' fwnode when registering a new device

  New Drivers:
   - Add support for ROHM BD70528 PMIC

  New Device Support:
   - Add support for LP87561 4-Phase Regulator to TI LP87565 PMIC
   - Add support for RK809 and RK817 to Rockchip RK808
   - Add support for Lid Angle to ChromeOS core
   - Add support for CS47L15 CODEC to Madera core
   - Add support for CS47L92 CODEC to Madera core
   - Add support for ChromeOS (legacy) Accelerometers in ChromeOS core
   - Add support for Add Intel Elkhart Lake PCH to Intel LPSS

  New Functionality:
   - Provide regulator supply information when registering; madera-core
   - Additional Device Tree support; lp87565, madera, cros-ec, rohm,bd71837-pmic
   - Allow over-riding power button press via Device Tree; rohm-bd718x7
   - Differentiate between running processors; cros_ec_dev

  Fix-ups:
   - Big header file update; cros_ec_commands.h
   - Split header per-subsystem; rohm-bd718x7
   - Remove superfluous code; menelaus, cs5535-mfd, cs47lXX-tables
   - Trivial; sorting, coding style; intel-lpss-pci
   - Only remove Power Off functionality if set locally; rk808
   - Make use for Power Off Prepare(); rk808
   - Fix spelling mistake in header guards; stmfx
   - Properly free IDA resources
   - SPDX fixups; cs47lXX-tables, madera
   - Error path fixups; hi655x-pmic

  Bug Fixes:
   - Add missing break in case() statement
   - Repair undefined behaviour when not initialising variables; arizona-core, madera-core
   - Fix reference to Device Tree documentation; madera"

* tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits)
  mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk
  mfd: madera: Fixup SPDX headers
  mfd: madera: Remove some unused registers and fix some defaults
  mfd: intel-lpss: Release IDA resources
  mfd: intel-lpss: Add Intel Elkhart Lake PCH PCI IDs
  mfd: cs5535-mfd: Remove ifdef OLPC noise
  mfd: stmfx: Fix macro definition spelling
  dt-bindings: mfd: Add link to ROHM BD71847 Datasheet
  MAINAINERS: Swap words in INTEL PMIC MULTIFUNCTION DEVICE DRIVERS
  mfd: cros_ec_dev: Register cros_ec_accel_legacy driver as a subdevice
  mfd: rk808: Prepare rk805 for poweroff
  mfd: rk808: Check pm_power_off pointer
  mfd: cros_ec: differentiate SCP from EC by feature bit
  dt-bindings: Add binding for cros-ec-rpmsg
  mfd: madera: Add Madera core support for CS47L92
  mfd: madera: Add Madera core support for CS47L15
  mfd: madera: Update DT bindings to add additional CODECs
  mfd: madera: Add supply mapping for MICVDD
  mfd: madera: Fix potential uninitialised use of variable
  mfd: madera: Fix bad reference to pinctrl.txt file
  ...
Diffstat (limited to 'drivers/clk/clk-rk808.c')
-rw-r--r--drivers/clk/clk-rk808.c64
1 files changed, 63 insertions, 1 deletions
diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
index b1d7e4a296ef..32f833d732ed 100644
--- a/drivers/clk/clk-rk808.c
+++ b/drivers/clk/clk-rk808.c
@@ -88,6 +88,68 @@ of_clk_rk808_get(struct of_phandle_args *clkspec, void *data)
 	return idx ? &rk808_clkout->clkout2_hw : &rk808_clkout->clkout1_hw;
 }
 
+static int rk817_clkout2_enable(struct clk_hw *hw, bool enable)
+{
+	struct rk808_clkout *rk808_clkout = container_of(hw,
+							 struct rk808_clkout,
+							 clkout2_hw);
+	struct rk808 *rk808 = rk808_clkout->rk808;
+
+	return regmap_update_bits(rk808->regmap, RK817_SYS_CFG(1),
+				  RK817_CLK32KOUT2_EN,
+				  enable ? RK817_CLK32KOUT2_EN : 0);
+}
+
+static int rk817_clkout2_prepare(struct clk_hw *hw)
+{
+	return rk817_clkout2_enable(hw, true);
+}
+
+static void rk817_clkout2_unprepare(struct clk_hw *hw)
+{
+	rk817_clkout2_enable(hw, false);
+}
+
+static int rk817_clkout2_is_prepared(struct clk_hw *hw)
+{
+	struct rk808_clkout *rk808_clkout = container_of(hw,
+							 struct rk808_clkout,
+							 clkout2_hw);
+	struct rk808 *rk808 = rk808_clkout->rk808;
+	unsigned int val;
+
+	int ret = regmap_read(rk808->regmap, RK817_SYS_CFG(1), &val);
+
+	if (ret < 0)
+		return 0;
+
+	return (val & RK817_CLK32KOUT2_EN) ? 1 : 0;
+}
+
+static const struct clk_ops rk817_clkout2_ops = {
+	.prepare = rk817_clkout2_prepare,
+	.unprepare = rk817_clkout2_unprepare,
+	.is_prepared = rk817_clkout2_is_prepared,
+	.recalc_rate = rk808_clkout_recalc_rate,
+};
+
+static const struct clk_ops *rkpmic_get_ops(long variant)
+{
+	switch (variant) {
+	case RK809_ID:
+	case RK817_ID:
+		return &rk817_clkout2_ops;
+	/*
+	 * For the default case, it match the following PMIC type.
+	 * RK805_ID
+	 * RK808_ID
+	 * RK818_ID
+	 */
+	default:
+		return &rk808_clkout2_ops;
+	}
+}
+
 static int rk808_clkout_probe(struct platform_device *pdev)
 {
 	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
@@ -119,7 +181,7 @@ static int rk808_clkout_probe(struct platform_device *pdev)
 		return ret;
 
 	init.name = "rk808-clkout2";
-	init.ops = &rk808_clkout2_ops;
+	init.ops = rkpmic_get_ops(rk808->variant);
 	rk808_clkout->clkout2_hw.init = &init;
 
 	/* optional override of the clockname */