Re: [PATCH v2 2/9] ASoC: tegra: add support for CIF programming

From: Sameer Pujar
Date: Thu Feb 06 2020 - 06:56:57 EST




On 2/5/2020 10:32 PM, Dmitry Osipenko wrote:
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30.01.2020 13:33, Sameer Pujar ÐÐÑÐÑ:
...
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include "tegra_cif.h"
+
+void tegra_set_cif(struct regmap *regmap, unsigned int reg,
+ struct tegra_cif_conf *conf)
+{
+ unsigned int value;
+
+ value = (conf->threshold << TEGRA_ACIF_CTRL_FIFO_TH_SHIFT) |
+ ((conf->audio_ch - 1) << TEGRA_ACIF_CTRL_AUDIO_CH_SHIFT) |
+ ((conf->client_ch - 1) << TEGRA_ACIF_CTRL_CLIENT_CH_SHIFT) |
+ (conf->audio_bits << TEGRA_ACIF_CTRL_AUDIO_BITS_SHIFT) |
+ (conf->client_bits << TEGRA_ACIF_CTRL_CLIENT_BITS_SHIFT) |
+ (conf->expand << TEGRA_ACIF_CTRL_EXPAND_SHIFT) |
+ (conf->stereo_conv << TEGRA_ACIF_CTRL_STEREO_CONV_SHIFT) |
+ (conf->replicate << TEGRA_ACIF_CTRL_REPLICATE_SHIFT) |
+ (conf->truncate << TEGRA_ACIF_CTRL_TRUNCATE_SHIFT) |
+ (conf->mono_conv << TEGRA_ACIF_CTRL_MONO_CONV_SHIFT);
+
+ regmap_update_bits(regmap, reg, TEGRA_ACIF_UPDATE_MASK, value);
+}
+EXPORT_SYMBOL_GPL(tegra_set_cif);
Are you going to add more stuff into this source file later on?

Yes I plan to add Tegra30 and Tegra124 CIF functions in this. Anything related to CIF can be moved here.

If not, then it's too much to have a separate driver module just for a
single tiny function, you should move it into the header file (make it
inline).