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authorLinus Torvalds <torvalds@linux-foundation.org>2023-11-01 06:40:35 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-11-01 06:40:35 +0300
commit34aac0a33de21ec6e03b689342c0933a4989fbc2 (patch)
tree8e7e2470dfcf7d705cc084a38a48bd62f5a90147 /drivers/spi/spi-bcm2835aux.c
parent9d6c80f8054f75326939b947185ec47ba3755d42 (diff)
parent1b2e883e1af895b62808b044ac96b77e7c9017b1 (diff)
downloadlinux-34aac0a33de21ec6e03b689342c0933a4989fbc2.tar.xz
Merge tag 'spi-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "This is a very quiet release for SPI, we've got cleanups and minor fixes but only a few new driver specific features. The bulk of the changes in terms of diffstat are the cleanups, plus one bit of performance work for McSPI. - Conversions to use devm_clk_get_enabled() and to remove outdated terms for controller and device - Device mode support for the Renesas CSI - Cleanups and improvements to the device tree bindings aimed at making validation better - PIO FIFO usage for the OMAP2 McSPI, improving performance" * tag 'spi-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (75 commits) spi: omap2-mcspi: Add FIFO support without DMA spi: stm32: Explicitly include correct DT includes spi: Export acpi_spi_find_controller_by_adev() spi: nxp-fspi: use the correct ioremap function spi: Don't use flexible array in struct spi_message definition spi: bcm2835: add a sentinel at the end of the lookup array spi: spi-geni-qcom: Rename the label unmap_if_dma spi: rzv2m-csi: Add target mode support spi: renesas,rzv2m-csi: Add CSI (SPI) target related property spi: spidev: make spidev_class constant spi: mpc52xx-psc: Make mpc52xx_psc_spi_transfer_one_message() static spi: spi-cadence-quadspi: Fix missing unwind goto warnings spi: omap2-mcspi: Fix hardcoded reference clock spi: dt-bindings: Make "additionalProperties: true" explicit spi: at91-usart: Remove some dead code spi: dt-bindings: st,stm32-spi: Move "st,spi-midi-ns" to spi-peripheral-props.yaml spi: qup: Vote for interconnect bandwidth to DRAM spi: dt-bindings: qup: Document interconnects spi: qup: Parse OPP table for DVFS support spi: dt-bindings: qup: Document power-domains and OPP ...
Diffstat (limited to 'drivers/spi/spi-bcm2835aux.c')
-rw-r--r--drivers/spi/spi-bcm2835aux.c23
1 files changed, 4 insertions, 19 deletions
diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c
index 6d2a5d9f2498..06fe155a70c9 100644
--- a/drivers/spi/spi-bcm2835aux.c
+++ b/drivers/spi/spi-bcm2835aux.c
@@ -512,7 +512,7 @@ static int bcm2835aux_spi_probe(struct platform_device *pdev)
if (IS_ERR(bs->regs))
return PTR_ERR(bs->regs);
- bs->clk = devm_clk_get(&pdev->dev, NULL);
+ bs->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(bs->clk)) {
err = PTR_ERR(bs->clk);
dev_err(&pdev->dev, "could not get clk: %d\n", err);
@@ -523,19 +523,11 @@ static int bcm2835aux_spi_probe(struct platform_device *pdev)
if (bs->irq < 0)
return bs->irq;
- /* this also enables the HW block */
- err = clk_prepare_enable(bs->clk);
- if (err) {
- dev_err(&pdev->dev, "could not prepare clock: %d\n", err);
- return err;
- }
-
/* just checking if the clock returns a sane value */
clk_hz = clk_get_rate(bs->clk);
if (!clk_hz) {
dev_err(&pdev->dev, "clock returns 0 Hz\n");
- err = -ENODEV;
- goto out_clk_disable;
+ return -ENODEV;
}
/* reset SPI-HW block */
@@ -547,22 +539,18 @@ static int bcm2835aux_spi_probe(struct platform_device *pdev)
dev_name(&pdev->dev), host);
if (err) {
dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
- goto out_clk_disable;
+ return err;
}
err = spi_register_controller(host);
if (err) {
dev_err(&pdev->dev, "could not register SPI host: %d\n", err);
- goto out_clk_disable;
+ return err;
}
bcm2835aux_debugfs_create(bs, dev_name(&pdev->dev));
return 0;
-
-out_clk_disable:
- clk_disable_unprepare(bs->clk);
- return err;
}
static void bcm2835aux_spi_remove(struct platform_device *pdev)
@@ -575,9 +563,6 @@ static void bcm2835aux_spi_remove(struct platform_device *pdev)
spi_unregister_controller(host);
bcm2835aux_spi_reset_hw(bs);
-
- /* disable the HW block by releasing the clock */
- clk_disable_unprepare(bs->clk);
}
static const struct of_device_id bcm2835aux_spi_match[] = {