diff options
| author | Gwendal Grignou <gwendal@chromium.org> | 2025-01-14 23:21:22 +0300 |
|---|---|---|
| committer | Tzung-Bi Shih <tzungbi@kernel.org> | 2025-01-15 04:28:50 +0300 |
| commit | fccebbdde2067e359f01382a72c31ed2af7acbac (patch) | |
| tree | e83ebc79c810e6ddf4b1e3aab96c53553e6d5043 /drivers/platform | |
| parent | 15fa0621d7b389effbf09e94b765e828f931f8c0 (diff) | |
| download | linux-fccebbdde2067e359f01382a72c31ed2af7acbac.tar.xz | |
platform/chrome: cros_ec_lpc: Handle EC without CRS section
Fix logic to support GOOG0004 device without CRS section.
Instead of failing, assume there are not memory mapped EC registers.
Fixes: be4fccb5e1fb ("platform/chrome: cros_ec_lpc: Support direct EC register memory access")
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20250114202122.2352277-1-gwendal@chromium.org
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/chrome/cros_ec_lpc.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c index ee9e3c8685cf..5a2f1d98b350 100644 --- a/drivers/platform/chrome/cros_ec_lpc.c +++ b/drivers/platform/chrome/cros_ec_lpc.c @@ -562,11 +562,7 @@ static int cros_ec_lpc_probe(struct platform_device *pdev) */ status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS, cros_ec_lpc_resources, ec_lpc); - if (ACPI_FAILURE(status)) { - dev_err(dev, "failed to get resources\n"); - return -ENODEV; - } - if (ec_lpc->mem32.address_length) { + if (ACPI_SUCCESS(status) && ec_lpc->mem32.address_length) { ec_lpc->base = devm_ioremap(dev, ec_lpc->mem32.address, ec_lpc->mem32.address_length); |