iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

firmware: qcom: scm: Rework dload mode availability check

Browse Source 
QCOM_SCM_BOOT_SET_DLOAD_MODE scm command is applicable for very
older SoCs where this command is supported from firmware and
for newer SoCs, dload mode tcsr registers is used for setting
the download mode.

Currently, qcom_scm_set_download_mode() checks for availability
of QCOM_SCM_BOOT_SET_DLOAD_MODE command even for SoCs where this
is not used. Fix this by switching the condition to keep the
command availability check only if dload mode registers are not
available.

Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Reviewed-by: Elliot Berman <quic_eberman@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/1711034642-22860-3-git-send-email-quic_mojha@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Mukesh Ojha 2024-03-21 20:54:01 +05:30 committed by Bjorn Andersson
parent 000636d91d
commit 398a4c58f3
1 changed files with 5 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/firmware/qcom/qcom_scm.c
View File

@ -495,17 +495,14 @@ static int __qcom_scm_set_dload_mode(struct device *dev, bool enable)
static void qcom_scm_set_download_mode(bool enable)
{
bool avail;
int ret = 0;
avail = __qcom_scm_is_call_available(__scm->dev,
QCOM_SCM_SVC_BOOT,
QCOM_SCM_BOOT_SET_DLOAD_MODE);
if (avail) {
ret = __qcom_scm_set_dload_mode(__scm->dev, enable);
} else if (__scm->dload_mode_addr) {
if (__scm->dload_mode_addr) {
ret = qcom_scm_io_writel(__scm->dload_mode_addr,
enable ? QCOM_SCM_BOOT_SET_DLOAD_MODE : 0);
enable ? QCOM_SCM_BOOT_SET_DLOAD_MODE : 0);
} else if (__qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_BOOT,
QCOM_SCM_BOOT_SET_DLOAD_MODE)) {
ret = __qcom_scm_set_dload_mode(__scm->dev, enable);
} else {
dev_err(__scm->dev,
"No available mechanism for setting download mode\n");