[PATCH 3/3] i2c: geni: load firmware if required
Caleb Connolly
caleb.connolly at linaro.org
Fri Mar 14 17:09:46 CET 2025
Load firmware for the peripheral if necessary.
Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
---
drivers/i2c/geni_i2c.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/i2c/geni_i2c.c b/drivers/i2c/geni_i2c.c
index 4eb41ba852f7790ca646c8ba38f29fdb727fa804..fca0fab7201a2f86ff4a8c12d053297e660c4621 100644
--- a/drivers/i2c/geni_i2c.c
+++ b/drivers/i2c/geni_i2c.c
@@ -21,8 +21,9 @@
#include <clk.h>
#include <reset.h>
#include <time.h>
#include <soc/qcom/geni-se.h>
+#include <soc/qcom/qup-fw-load.h>
#define SE_I2C_TX_TRANS_LEN 0x26c
#define SE_I2C_RX_TRANS_LEN 0x270
#define SE_I2C_SCL_COUNTERS 0x278
@@ -498,8 +499,15 @@ static int geni_i2c_probe(struct udevice *dev)
proto = readl(geni->base + GENI_FW_REVISION_RO);
proto &= FW_REV_PROTOCOL_MSK;
proto >>= FW_REV_PROTOCOL_SHFT;
+ if (proto == 0xff) {
+ qcom_geni_load_firmware(geni->base, dev);
+ proto = readl(geni->base + GENI_FW_REVISION_RO);
+ proto &= FW_REV_PROTOCOL_MSK;
+ proto >>= FW_REV_PROTOCOL_SHFT;
+ }
+
if (proto != GENI_SE_I2C) {
dev_err(dev, "Invalid proto %d\n", proto);
geni_i2c_disable_clocks(dev, geni);
return -ENXIO;
--
2.48.1
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