[PATCH 05/14] clk: tegra: Init cfg structure in _get_pll_mnp

From: Peter De Schrijver
Date: Tue Jul 25 2017 - 06:39:06 EST


Not all fields are read from the hw depending on the PLL type. Make sure
the other fields are 0 by clearing the structure beforehand to prevent
users such as the rate re-calculation code from using bogus values.

Based on work by Alex Frid <afrid@xxxxxxxxxx>

Signed-off-by: Peter De Schrijver <pdeschrijver@xxxxxxxxxx>
---
drivers/clk/tegra/clk-pll.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index fbd8726..1c36b8a 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -690,6 +690,8 @@ static void _get_pll_mnp(struct tegra_clk_pll *pll,
struct tegra_clk_pll_params *params = pll->params;
struct div_nmp *div_nmp = params->div_nmp;

+ *cfg = (struct tegra_clk_pll_freq_table) { };
+
if ((params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) &&
(pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) &
PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) {
--
1.9.1