43 lines
1.7 KiB
Diff
43 lines
1.7 KiB
Diff
From 6b62f495aa3d5e6c17b61bc27f2f8673b4e4c829 Mon Sep 17 00:00:00 2001
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From: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
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Date: Thu, 11 Sep 2025 10:02:54 +0530
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Subject: [PATCH 4/5] i2c: qcom-geni: Load i2c qup Firmware from linux side
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Add provision to load firmware of Serial engine for I2C protocol from
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Linux Execution Environment on running on APPS processor.
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Acked-by: Andi Shyti <andi.shyti@kernel.org>
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Co-developed-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>
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Signed-off-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>
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Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
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Link: https://lore.kernel.org/r/20250911043256.3523057-5-viken.dadhaniya@oss.qualcomm.com
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Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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---
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drivers/i2c/busses/i2c-qcom-geni.c | 10 +++++++++-
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1 file changed, 9 insertions(+), 1 deletion(-)
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diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
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index 212336f72..f307aa2ac 100644
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--- a/drivers/i2c/busses/i2c-qcom-geni.c
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+++ b/drivers/i2c/busses/i2c-qcom-geni.c
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@@ -858,7 +858,15 @@ static int geni_i2c_probe(struct platform_device *pdev)
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return ret;
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}
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proto = geni_se_read_proto(&gi2c->se);
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- if (proto != GENI_SE_I2C) {
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+ if (proto == GENI_SE_INVALID_PROTO) {
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+ ret = geni_load_se_firmware(&gi2c->se, GENI_SE_I2C);
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+ if (ret) {
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+ dev_err_probe(dev, ret, "i2c firmware load failed ret: %d\n", ret);
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+ geni_se_resources_off(&gi2c->se);
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+ clk_disable_unprepare(gi2c->core_clk);
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+ return ret;
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+ }
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+ } else if (proto != GENI_SE_I2C) {
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dev_err(dev, "Invalid proto %d\n", proto);
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geni_se_resources_off(&gi2c->se);
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clk_disable_unprepare(gi2c->core_clk);
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--
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2.51.1
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