@@ -492,7 +492,6 @@ static u32 tegra210_emc_r21021_periodic_compensation(struct tegra210_emc *emc)
};
struct tegra210_emc_timing *last = emc->last;
unsigned int items = ARRAY_SIZE(list), i;
- unsigned long delay;
if (last->periodic_training) {
emc_dbg(emc, PER_TRAIN, "Periodic training starting\n");
@@ -530,18 +529,9 @@ static u32 tegra210_emc_r21021_periodic_compensation(struct tegra210_emc *emc)
/*
* 2. osc kick off - this assumes training and dvfs have set
* correct MR23.
- */
- tegra210_emc_start_periodic_compensation(emc);
-
- /*
+ *
* 3. Let dram capture its clock tree delays.
- */
- delay = tegra210_emc_actual_osc_clocks(last->run_clocks);
- delay *= 1000;
- delay /= last->rate + 1;
- udelay(delay);
-
- /*
+ *
* 4. Check delta wrt previous values (save value if margin
* exceeds what is set in table).
*/
@@ -734,11 +724,6 @@ static void tegra210_emc_r21021_set_clock(struct tegra210_emc *emc, u32 clksrc)
EMC_EMC_STATUS_DRAM_IN_SELF_REFRESH_MASK,
0);
- tegra210_emc_start_periodic_compensation(emc);
-
- delay = 1000 * tegra210_emc_actual_osc_clocks(last->run_clocks);
- udelay((delay / last->rate) + 2);
-
value = periodic_compensation_handler(emc, DVFS_SEQUENCE, fake,
next);
value = (value * 128 * next->rate / 1000) / 1000000;
Prior to calling periodic_compensation_handler() the code is doing one extra DRAM delay reading which is unnecessary as this is already done in periodic_compensation_handler(), so remove these extra calls. Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt> --- drivers/memory/tegra/tegra210-emc-cc-r21021.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-)