update kernel to 5.10.198

hc

2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf

 kernel/drivers/gpu/drm/tiny/ili9486.c
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@@ -43,6 +43,7 @@
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 			     size_t num)
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 {
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 	struct spi_device *spi = mipi->spi;
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+	unsigned int bpw = 8;
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 	void *data = par;
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 	u32 speed_hz;
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 	int i, ret;
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@@ -56,8 +57,6 @@
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 	 * The displays are Raspberry Pi HATs and connected to the 8-bit only
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 	 * SPI controller, so 16-bit command and parameters need byte swapping
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 	 * before being transferred as 8-bit on the big endian SPI bus.
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-	 * Pixel data bytes have already been swapped before this function is
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-	 * called.
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 	 */
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 	buf[0] = cpu_to_be16(*cmd);
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 	gpiod_set_value_cansleep(mipi->dc, 0);
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@@ -71,12 +70,18 @@
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 		for (i = 0; i < num; i++)
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 			buf[i] = cpu_to_be16(par[i]);
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 		num *= 2;
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-		speed_hz = mipi_dbi_spi_cmd_max_speed(spi, num);
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 		data = buf;
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 	}
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+	/*
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+	 * Check whether pixel data bytes needs to be swapped or not
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+	 */
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+	if (*cmd == MIPI_DCS_WRITE_MEMORY_START && !mipi->swap_bytes)
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+		bpw = 16;
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+
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 	gpiod_set_value_cansleep(mipi->dc, 1);
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-	ret = mipi_dbi_spi_transfer(spi, speed_hz, 8, data, num);
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+	speed_hz = mipi_dbi_spi_cmd_max_speed(spi, num);
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+	ret = mipi_dbi_spi_transfer(spi, speed_hz, bpw, data, num);
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  free:
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 	kfree(buf);
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