add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/sound/soc/meson/axg-tdm-formatter.c
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@@ -7,6 +7,7 @@
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 #include <linux/module.h>
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 #include <linux/of_platform.h>
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 #include <linux/regmap.h>
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+#include <linux/reset.h>
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 #include <sound/soc.h>
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 #include "axg-tdm-formatter.h"
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@@ -20,6 +21,7 @@
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 	struct clk *lrclk;
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 	struct clk *sclk_sel;
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 	struct clk *lrclk_sel;
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+	struct reset_control *reset;
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 	bool enabled;
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 	struct regmap *map;
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 };
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@@ -68,7 +70,7 @@
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 static int axg_tdm_formatter_enable(struct axg_tdm_formatter *formatter)
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 {
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 	struct axg_tdm_stream *ts = formatter->stream;
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-	bool invert = formatter->drv->invert_sclk;
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+	bool invert;
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 	int ret;
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 	/* Do nothing if the formatter is already enabled */
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@@ -76,16 +78,37 @@
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 		return 0;
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 	/*
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-	 * If sclk is inverted, invert it back and provide the inversion
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-	 * required by the formatter
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+	 * On the g12a (and possibly other SoCs), when a stream using
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+	 * multiple lanes is restarted, it will sometimes not start
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+	 * from the first lane, but randomly from another used one.
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+	 * The result is an unexpected and random channel shift.
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+	 *
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+	 * The hypothesis is that an HW counter is not properly reset
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+	 * and the formatter simply starts on the lane it stopped
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+	 * before. Unfortunately, there does not seems to be a way to
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+	 * reset this through the registers of the block.
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+	 *
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+	 * However, the g12a has indenpendent reset lines for each audio
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+	 * devices. Using this reset before each start solves the issue.
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 	 */
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-	invert ^= axg_tdm_sclk_invert(ts->iface->fmt);
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-	ret = clk_set_phase(formatter->sclk, invert ? 180 : 0);
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+	ret = reset_control_reset(formatter->reset);
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+	if (ret)
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+		return ret;
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+
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+	/*
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+	 * If sclk is inverted, it means the bit should latched on the
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+	 * rising edge which is what our HW expects. If not, we need to
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+	 * invert it before the formatter.
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+	 */
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+	invert = axg_tdm_sclk_invert(ts->iface->fmt);
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+	ret = clk_set_phase(formatter->sclk, invert ? 0 : 180);
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 	if (ret)
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 		return ret;
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 	/* Setup the stream parameter in the formatter */
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-	ret = formatter->drv->ops->prepare(formatter->map, formatter->stream);
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+	ret = formatter->drv->ops->prepare(formatter->map,
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+					   formatter->drv->quirks,
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+					   formatter->stream);
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 	if (ret)
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 		return ret;
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@@ -231,7 +254,6 @@
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 	struct device *dev = &pdev->dev;
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 	const struct axg_tdm_formatter_driver *drv;
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 	struct axg_tdm_formatter *formatter;
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-	struct resource *res;
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 	void __iomem *regs;
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 	int ret;
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@@ -247,8 +269,7 @@
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 	platform_set_drvdata(pdev, formatter);
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 	formatter->drv = drv;
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	regs = devm_ioremap_resource(dev, res);
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+	regs = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(regs))
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 		return PTR_ERR(regs);
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@@ -301,6 +322,15 @@
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 		ret = PTR_ERR(formatter->lrclk_sel);
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 		if (ret != -EPROBE_DEFER)
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 			dev_err(dev, "failed to get lrclk_sel: %d\n", ret);
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+		return ret;
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+	}
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+
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+	/* Formatter dedicated reset line */
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+	formatter->reset = devm_reset_control_get_optional_exclusive(dev, NULL);
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+	if (IS_ERR(formatter->reset)) {
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+		ret = PTR_ERR(formatter->reset);
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+		if (ret != -EPROBE_DEFER)
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+			dev_err(dev, "failed to get reset: %d\n", ret);
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 		return ret;
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 	}
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@@ -368,7 +398,7 @@
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 	/*
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 	 * If the list is not empty, it would mean that one of the formatter
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 	 * widget is still powered and attached to the interface while we
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-	 * we are removing the TDM DAI. It should not be possible
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+	 * are removing the TDM DAI. It should not be possible
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 	 */
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 	WARN_ON(!list_empty(&ts->formatter_list));
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 	mutex_destroy(&ts->lock);