[PATCH v10 05/19] memory: tegra124-emc: Continue probing if timings are missing in device-tree

Dmitry Osipenko
2020-11-23T00:31:38Z

EMC driver will become mandatory after turning it into interconnect
provider because interconnect users, like display controller driver, will
fail to probe using newer device-trees that have interconnect properties.
Thus make EMC driver to probe even if timings are missing in device-tree.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/memory/tegra/tegra124-emc.c | 26 +++++++++-----------------
1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c
index edfbf6d6d357..8fb8c1af25c9 100644
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@ -1201,23 +1201,15 @@ static int tegra_emc_probe(struct platform_device *pdev)
ram_code = tegra_read_ram_code();

np = tegra_emc_find_node_by_ram_code(pdev->dev.of_node, ram_code);
- if (!np) {
- dev_err(&pdev->dev,
- "no memory timings for RAM code %u found in DT\n",
- ram_code);
- return -ENOENT;
- }
-
- err = tegra_emc_load_timings_from_dt(emc, np);
- of_node_put(np);
- if (err)
- return err;
-
- if (emc->num_timings == 0) {
- dev_err(&pdev->dev,
- "no memory timings for RAM code %u registered\n",
- ram_code);
- return -ENOENT;
+ if (np) {
+ err = tegra_emc_load_timings_from_dt(emc, np);
+ of_node_put(np);
+ if (err)
+ return err;
+ } else {
+ dev_info(&pdev->dev,
+ "no memory timings for RAM code %u found in DT\n",
+ ram_code);
}

err = emc_init(emc);
--
2.29.2