Merge tag 'spi-fix-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few SPI fixes: clock rate calculation fixes for the Kunpeng and lpsi
  drivers and a missing registration of a device ID for spidev (which
  had only been updated for DT cases, causing warnings)"

* tag 'spi-fix-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: spi-fsl-lpspi: Fix scldiv calculation
  spi: spidev: Add missing spi_device_id for bh2228fv
  spi: hisi-kunpeng: Add verification for the max_frequency provided by the firmware
  spi: hisi-kunpeng: Add validation for the minimum value of speed_hz

Author: torvalds

drivers/spi/spi-fsl-lpspi.c

@@ -296,7 +296,7 @@ static void fsl_lpspi_set_watermark(struct fsl_lpspi_data *fsl_lpspi)
 static int fsl_lpspi_set_bitrate(struct fsl_lpspi_data *fsl_lpspi)
 {
 	struct lpspi_config config = fsl_lpspi->config;
-	unsigned int perclk_rate, scldiv;
+	unsigned int perclk_rate, scldiv, div;
 	u8 prescale;
 
 	perclk_rate = clk_get_rate(fsl_lpspi->clk_per);
@@ -313,8 +313,10 @@ static int fsl_lpspi_set_bitrate(struct fsl_lpspi_data *fsl_lpspi)
 		return -EINVAL;
 	}
 
+	div = DIV_ROUND_UP(perclk_rate, config.speed_hz);
+
 	for (prescale = 0; prescale < 8; prescale++) {
-		scldiv = perclk_rate / config.speed_hz / (1 << prescale) - 2;
+		scldiv = div / (1 << prescale) - 2;
 		if (scldiv < 256) {
 			fsl_lpspi->config.prescale = prescale;
 			break;

drivers/spi/spi-hisi-kunpeng.c

@@ -481,6 +481,9 @@ static int hisi_spi_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
+	if (host->max_speed_hz == 0)
+		return dev_err_probe(dev, -EINVAL, "spi-max-frequency can't be 0\n");
+
 	ret = device_property_read_u16(dev, "num-cs",
 					&host->num_chipselect);
 	if (ret)
@@ -495,6 +498,7 @@ static int hisi_spi_probe(struct platform_device *pdev)
 	host->transfer_one = hisi_spi_transfer_one;
 	host->handle_err = hisi_spi_handle_err;
 	host->dev.fwnode = dev->fwnode;
+	host->min_speed_hz = DIV_ROUND_UP(host->max_speed_hz, CLK_DIV_MAX);
 
 	hisi_spi_hw_init(hs);
 

drivers/spi/spidev.c

@@ -700,6 +700,7 @@ static const struct class spidev_class = {
 };
 
 static const struct spi_device_id spidev_spi_ids[] = {
+	{ .name = "bh2228fv" },
 	{ .name = "dh2228fv" },
 	{ .name = "ltc2488" },
 	{ .name = "sx1301" },