Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted

Pull media updates from Mauro Carvalho Chehab:

 - v4l2-core: added ISP statistics support and per-block validation

 - v4l2-core: Allow unknown HDR10 white point and luminance

 - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor

 - New codec: Milos: VPU v2.0 codec support

 - isp driver: gained support for Dreamchip RPPX1 ISP framework

 - vsp1 driver: gained support for RZ/T2H and RZ/N2H

 - Novalake driver: gained CVS support for new NVL hardware

 - dvb-core: fix feed leak on failed DMX_ADD_PID

 - several driver fixes, cleanups and minor improvements

* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
  media: ipu-bridge: check all DMI entries when overriding sensor rotation
  media: v4l2-async: avoid deleting unlinked ASC entry on link error
  media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
  media: intel/ipu6: fix async notifier cleanup leak on parse error
  media: staging/ipu7: fix async notifier UAF on probe error path
  media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
  media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
  media: rcar-isp: Fix VSPX reference leaks
  media: rcar-isp: Release ISPCORE resources
  media: i2c: imx415: Release runtime PM reference on VBLANK error
  media: i2c: imx415: Return test pattern write errors
  media: renesas: vsp1: Declare index variables in for loop statement
  media: renesas: vsp1: Make reset control optional to support platforms without a reset line
  media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
  media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
  media: nxp: imx8-isi: Add additional 32-bit RGB format support
  media: nxp: imx8-isi: Add 16-bit raw Bayer format support
  media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
  media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
  media: nxp: imx8-isi: Correct color map between V4L2 and ISI
  ...

1 files changed, 144 insertions, 0 deletions

diff --git a/drivers/misc/qcom-coincell.c b/drivers/misc/qcom-coincell.c
new file mode 100644
index 000000000..3c57f7429
--- /dev/null
+++ b/drivers/misc/qcom-coincell.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015, Sony Mobile Communications Inc.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/platform_device.h>
+
+struct qcom_coincell {
+	struct device	*dev;
+	struct regmap	*regmap;
+	u32		base_addr;
+};
+
+#define QCOM_COINCELL_REG_RSET		0x44
+#define QCOM_COINCELL_REG_VSET		0x45
+#define QCOM_COINCELL_REG_ENABLE	0x46
+
+#define QCOM_COINCELL_ENABLE		BIT(7)
+
+static const int qcom_rset_map[] = { 2100, 1700, 1200, 800 };
+static const int qcom_vset_map[] = { 2500, 3200, 3100, 3000 };
+/* NOTE: for pm8921 and others, voltage of 2500 is 16 (10000b), not 0 */
+
+/* if enable==0, rset and vset are ignored */
+static int qcom_coincell_chgr_config(struct qcom_coincell *chgr, int rset,
+				     int vset, bool enable)
+{
+	int i, j, rc;
+
+	/* if disabling, just do that and skip other operations */
+	if (!enable)
+		return regmap_write(chgr->regmap,
+			  chgr->base_addr + QCOM_COINCELL_REG_ENABLE, 0);
+
+	/* find index for current-limiting resistor */
+	for (i = 0; i < ARRAY_SIZE(qcom_rset_map); i++)
+		if (rset == qcom_rset_map[i])
+			break;
+
+	if (i >= ARRAY_SIZE(qcom_rset_map)) {
+		dev_err(chgr->dev, "invalid rset-ohms value %d\n", rset);
+		return -EINVAL;
+	}
+
+	/* find index for charge voltage */
+	for (j = 0; j < ARRAY_SIZE(qcom_vset_map); j++)
+		if (vset == qcom_vset_map[j])
+			break;
+
+	if (j >= ARRAY_SIZE(qcom_vset_map)) {
+		dev_err(chgr->dev, "invalid vset-millivolts value %d\n", vset);
+		return -EINVAL;
+	}
+
+	rc = regmap_write(chgr->regmap,
+			  chgr->base_addr + QCOM_COINCELL_REG_RSET, i);
+	if (rc) {
+		/*
+		 * This is mainly to flag a bad base_addr (reg) from dts.
+		 * Other failures writing to the registers should be
+		 * extremely rare, or indicative of problems that
+		 * should be reported elsewhere (eg. spmi failure).
+		 */
+		dev_err(chgr->dev, "could not write to RSET register\n");
+		return rc;
+	}
+
+	rc = regmap_write(chgr->regmap,
+		chgr->base_addr + QCOM_COINCELL_REG_VSET, j);
+	if (rc)
+		return rc;
+
+	/* set 'enable' register */
+	return regmap_write(chgr->regmap,
+			    chgr->base_addr + QCOM_COINCELL_REG_ENABLE,
+			    QCOM_COINCELL_ENABLE);
+}
+
+static int qcom_coincell_probe(struct platform_device *pdev)
+{
+	struct device_node *node = pdev->dev.of_node;
+	struct qcom_coincell chgr;
+	u32 rset = 0;
+	u32 vset = 0;
+	bool enable;
+	int rc;
+
+	chgr.dev = &pdev->dev;
+
+	chgr.regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!chgr.regmap) {
+		dev_err(chgr.dev, "Unable to get regmap\n");
+		return -EINVAL;
+	}
+
+	rc = of_property_read_u32(node, "reg", &chgr.base_addr);
+	if (rc)
+		return rc;
+
+	enable = !of_property_read_bool(node, "qcom,charger-disable");
+
+	if (enable) {
+		rc = of_property_read_u32(node, "qcom,rset-ohms", &rset);
+		if (rc) {
+			dev_err(chgr.dev,
+				"can't find 'qcom,rset-ohms' in DT block");
+			return rc;
+		}
+
+		rc = of_property_read_u32(node, "qcom,vset-millivolts", &vset);
+		if (rc) {
+			dev_err(chgr.dev,
+			    "can't find 'qcom,vset-millivolts' in DT block");
+			return rc;
+		}
+	}
+
+	return qcom_coincell_chgr_config(&chgr, rset, vset, enable);
+}
+
+static const struct of_device_id qcom_coincell_match_table[] = {
+	{ .compatible = "qcom,pm8941-coincell", },
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, qcom_coincell_match_table);
+
+static struct platform_driver qcom_coincell_driver = {
+	.driver	= {
+		.name		= "qcom-spmi-coincell",
+		.of_match_table	= qcom_coincell_match_table,
+	},
+	.probe		= qcom_coincell_probe,
+};
+
+module_platform_driver(qcom_coincell_driver);
+
+MODULE_DESCRIPTION("Qualcomm PMIC coincell charger driver");
+MODULE_LICENSE("GPL v2");