Re: [PATCH v1 09/10] staging: dsp: add support for Fortemedia FM34NE DSP

[Svyatoslav Ryhel]

вт, 21 лют. 2023 р. о 21:39 Dan Carpenter <error27@xxxxxxxxx> пише:
>
> On Tue, Feb 21, 2023 at 08:32:10PM +0200, Svyatoslav Ryhel wrote:
> > +static int fm34ne_dsp_set_config(struct fm34ne_dsp_data *fm34, int state)
> > +{
> > +     struct device *dev = &fm34->client->dev;
> > +
> > +     const u8 *enable_ns_parameter = fm34->data->enable_noise_suppression;
> > +     int enable_ns_length = fm34->data->enable_ns_length;
> > +
> > +     const u8 *disable_ns_parameter = fm34->data->disable_noise_suppression;
> > +     int disable_ns_length = fm34->data->disable_ns_length;
> > +
> > +     int ret;
> > +
> > +     gpiod_set_value_cansleep(fm34->bypass_gpio, 1);
> > +     msleep(20);
> > +
> > +     switch (state) {
> > +     case FM34NE_NS_ENABLE:
> > +             ret = fm34ne_dsp_write_config(fm34->client, enable_parameter,
> > +                                           sizeof(enable_parameter));
> > +             if (ret < 0) {
> > +                     dev_err(dev, "failed to set DSP enable with %d\n", ret);
> > +                     goto exit;
> > +             }
> > +
> > +             ret = fm34ne_dsp_write_config(fm34->client, enable_ns_parameter,
> > +                                           enable_ns_length);
> > +             if (ret < 0) {
> > +                     dev_err(dev, "failed to enable DSP noise suppression with %d\n", ret);
> > +                     goto exit;
> > +             }
> > +
> > +             dev_info(dev, "noise suppression enable DSP parameter written\n");
>
> Delete this type of debug code.
>
> > +             break;
> > +
> > +     case FM34NE_NS_DISABLE:
> > +             ret = fm34ne_dsp_write_config(fm34->client, enable_parameter,
> > +                                           sizeof(enable_parameter));
> > +             if (ret < 0) {
> > +                     dev_err(dev, "failed to set DSP enable with %d\n", ret);
> > +                     goto exit;
> > +             }
> > +
> > +             ret = fm34ne_dsp_write_config(fm34->client, disable_ns_parameter,
> > +                                           disable_ns_length);
> > +             if (ret < 0) {
> > +                     dev_err(dev, "failed to disable DSP noise suppression with %d\n", ret);
> > +                     goto exit;
> > +             }
> > +
> > +             dev_info(dev, "noise suppression disable DSP parameter written\n");
>
> Same etc.
>
> > +             break;
> > +
> > +     case FM34NE_BYPASS:
> > +     default:
> > +             ret = fm34ne_dsp_write_config(fm34->client, bypass_parameter,
> > +                                           sizeof(bypass_parameter));
> > +             if (ret < 0) {
> > +                     dev_err(dev, "failed to set DSP bypass with %d\n", ret);
> > +                     goto exit;
> > +             }
> > +
> > +             dev_info(dev, "bypass DSP parameter written\n");
> > +             break;
> > +     }
> > +
> > +exit:
> > +     gpiod_set_value_cansleep(fm34->bypass_gpio, 0);
> > +
> > +     return ret;
> > +}
> > +
> > +static int fm34ne_dsp_set_hw(struct fm34ne_dsp_data *fm34)
> > +{
> > +     struct device *dev = &fm34->client->dev;
> > +     int ret;
> > +
> > +     ret = clk_prepare_enable(fm34->dap_mclk);
> > +     if (ret) {
> > +             dev_err(dev, "failed to enable the DSP MCLK: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     ret = regulator_enable(fm34->vdd_supply);
> > +     if (ret < 0) {
> > +             dev_err(dev, "failed to enable vdd power supply\n");
>
> clk_disable_unprepare(fm34->dap_mclk);

No, dap_mclk has to be on, else there will be no sound on the device.

> > +             return ret;
> > +     }
> > +
> > +     return 0;
> > +}
> > +
> > +static void fm34ne_dsp_reset(struct fm34ne_dsp_data *fm34)
> > +{
> > +     gpiod_set_value_cansleep(fm34->reset_gpio, 1);
> > +     msleep(20);
> > +
> > +     gpiod_set_value_cansleep(fm34->reset_gpio, 0);
> > +     msleep(100);
> > +}
> > +
> > +static int fm34ne_dsp_init_chip(struct fm34ne_dsp_data *fm34)
> > +{
> > +     const u8 *input_parameter = fm34->data->input_parameter;
> > +     int input_parameter_length = fm34->data->input_parameter_length;
> > +     int ret;
> > +
> > +     ret = fm34ne_dsp_set_hw(fm34);
> > +     if (ret)
> > +             return ret;
> > +
> > +     fm34ne_dsp_reset(fm34);
> > +
> > +     gpiod_set_value_cansleep(fm34->bypass_gpio, 1);
> > +     msleep(20);
> > +
> > +     ret = i2c_smbus_write_byte(fm34->client, FM34NE_I2C_CHECK);
> > +     if (ret < 0) {
> > +             dev_info(&fm34->client->dev, "initial write failed\n");
>
> dev_warn()?
>
> > +             msleep(50);
> > +
> > +             fm34ne_dsp_reset(fm34);
> > +             gpiod_set_value_cansleep(fm34->bypass_gpio, 0);
> > +
> > +             return ret;
> > +     }
> > +
> > +     ret = fm34ne_dsp_write_config(fm34->client, input_parameter,
> > +                                   input_parameter_length);
> > +     if (ret < 0)
> > +             return -EINVAL;
>
> Why not propagate the error code from fm34ne_dsp_write_config()?
>
> > +
> > +     msleep(100);
> > +     gpiod_set_value_cansleep(fm34->bypass_gpio, 0);
> > +
> > +     dev_info(&fm34->client->dev, "%s detected\n", fm34->data->model);
> > +
> > +     /* Constantly set DSP to bypass mode for now */
> > +     ret = fm34ne_dsp_set_config(fm34, FM34NE_BYPASS);
> > +     if (ret)
> > +             return ret;
> > +
> > +     return 0;
> > +}
>
> regards,
> dan carpenter

All other notes are reasonable. Thanks

Best regards,
Svyatoslav R.