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Message-ID: <20241218080155.102405-11-yung-chuan.liao@linux.intel.com> Date: Wed, 18 Dec 2024 16:01:51 +0800 From: Bard Liao <yung-chuan.liao@...ux.intel.com> To: linux-sound@...r.kernel.org, vkoul@...nel.org Cc: vinod.koul@...aro.org, linux-kernel@...r.kernel.org, pierre-louis.bossart@...ux.dev, bard.liao@...el.com Subject: [PATCH v3 10/14] soundwire: generic_bandwidth_allocation: check required freq accurately Currently, we check curr_dr_freq roughly by "if (curr_dr_freq <= bus->params.bandwidth)" in sdw_compute_bus_params() and check it accurately in sdw_select_row_col(). It works if we only support one freq. But, we need to check it accurately in sdw_select_row_col() to give it a chance to use a higher freq or use multi-lane. Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com> --- drivers/soundwire/generic_bandwidth_allocation.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c index 5c4dac36ad1a..d2632af9c8af 100644 --- a/drivers/soundwire/generic_bandwidth_allocation.c +++ b/drivers/soundwire/generic_bandwidth_allocation.c @@ -373,7 +373,8 @@ static int sdw_compute_bus_params(struct sdw_bus *bus) (bus->params.max_dr_freq >> clk_buf[i]) : clk_buf[i] * SDW_DOUBLE_RATE_FACTOR; - if (curr_dr_freq <= bus->params.bandwidth) + if (curr_dr_freq * (mstr_prop->default_col - 1) < + bus->params.bandwidth * mstr_prop->default_col) continue; break; -- 2.43.0
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