spi-geni-qcom: Add a function to get the IRQ of a device's master

Exporting the IRQ of a SPI device's master controller can help device drivers utilize the PM QoS API to force the SPI master IRQ to be serviced with low latency. Signed-off-by: Sultan Alsawaf <[email protected]> Signed-off-by: Yaroslav Furman <[email protected]> Change-Id: I4d7c597b390438c6bda97d94062794bf08c30b21 Signed-off-by: rzlamrr <[email protected]> Signed-off-by: fajar <[email protected]>
fajar3109 · May 28, 2022 · 558b6bf · 558b6bf
1 parent b2fc18d
commit 558b6bf
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
@@ -255,6 +255,13 @@ static int spi_slv_abort(struct spi_master *spi)
 	return 0;
 }
 
+int geni_spi_get_master_irq(struct spi_device *spi_slv)
+{
+	struct spi_geni_master *mas = spi_master_get_devdata(spi_slv->master);
+
+	return mas->irq;
+}
+
 static int get_spi_clk_cfg(u32 speed_hz, struct spi_geni_master *mas,
 			int *clk_idx, int *clk_div)
 {

diff --git a/include/linux/spi/spi-geni-qcom.h b/include/linux/spi/spi-geni-qcom.h
@@ -20,4 +20,7 @@ struct spi_geni_qcom_ctrl_data {
 	u32 spi_inter_words_delay;
 };
 
+struct spi_device;
+int geni_spi_get_master_irq(struct spi_device *spi_slv);
+
 #endif /*__SPI_GENI_QCOM_HEADER___*/