linux-kernel - [PATCH v4 4/5] spi: geni-qcom: Load spi qup Firmware from linux side

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Message-Id: <20250503111029.3583807-5-quic_vdadhani@quicinc.com>
Date: Sat,  3 May 2025 16:40:28 +0530
From: Viken Dadhaniya <quic_vdadhani@...cinc.com>
To: andi.shyti@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, gregkh@...uxfoundation.org, jirislaby@...nel.org,
        broonie@...nel.or, andersson@...nel.org, konradybcio@...nel.org,
        johan+linaro@...nel.org, dianders@...omium.org, agross@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-spi@...r.kernel.org
Cc: quic_msavaliy@...cinc.com, quic_anupkulk@...cinc.com,
        Viken Dadhaniya <quic_vdadhani@...cinc.com>
Subject: [PATCH v4 4/5] spi: geni-qcom: Load spi qup Firmware from linux side

Add provision to load firmware of Serial engine for SPI protocol from
Linux Execution Environment on running on APPS processor.

Co-developed-by: Mukesh Kumar Savaliya <quic_msavaliy@...cinc.com>
Signed-off-by: Mukesh Kumar Savaliya <quic_msavaliy@...cinc.com>
Signed-off-by: Viken Dadhaniya <quic_vdadhani@...cinc.com>
---
Dependencies:

This patch depends on patch 2 of this series.

v3 -> v4:

- Add a patch dependency note.

v3 Link: https://lore.kernel.org/linux-arm-msm/20250303124349.3474185-9-quic_vdadhani@quicinc.com/

v2 -> v3:

- Load firmware only if the protocol is invalid.

v2 Link: https://lore.kernel.org/linux-arm-msm/20250124105309.295769-8-quic_vdadhani@quicinc.com/

v1 -> v2:

- No change.

v1 Link: https://lore.kernel.org/linux-arm-msm/20241204150326.1470749-7-quic_vdadhani@quicinc.com/
---
---
 drivers/spi/spi-geni-qcom.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index 768d7482102a..a0d8d3425c6c 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -671,6 +671,12 @@ static int spi_geni_init(struct spi_geni_master *mas)
 			goto out_pm;
 		}
 		spi_slv_setup(mas);
+	} else if (proto == GENI_SE_INVALID_PROTO) {
+		ret = geni_load_se_firmware(se, GENI_SE_SPI);
+		if (ret) {
+			dev_err(mas->dev, "spi master firmware load failed ret: %d\n", ret);
+			goto out_pm;
+		}
 	} else if (proto != GENI_SE_SPI) {
 		dev_err(mas->dev, "Invalid proto %d\n", proto);
 		goto out_pm;
-- 
2.34.1