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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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e797f58ead
No board is using Renesas sound driver via platform boot now. This means all user is using DT boot. Platform boot support is no longer needed. But, it strongly depends on platform boot style. Now, platform boot style was removed from driver. This is cleanup patch, and remove pointless struct rsnd_of_data Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
155 lines
3.2 KiB
C
155 lines
3.2 KiB
C
/*
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* ctu.c
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*
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* Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "rsnd.h"
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#define CTU_NAME_SIZE 16
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#define CTU_NAME "ctu"
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struct rsnd_ctu {
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struct rsnd_mod mod;
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};
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#define rsnd_ctu_nr(priv) ((priv)->ctu_nr)
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#define for_each_rsnd_ctu(pos, priv, i) \
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for ((i) = 0; \
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((i) < rsnd_ctu_nr(priv)) && \
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((pos) = (struct rsnd_ctu *)(priv)->ctu + i); \
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i++)
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#define rsnd_ctu_get(priv, id) ((struct rsnd_ctu *)(priv->ctu) + id)
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#define rsnd_ctu_initialize_lock(mod) __rsnd_ctu_initialize_lock(mod, 1)
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#define rsnd_ctu_initialize_unlock(mod) __rsnd_ctu_initialize_lock(mod, 0)
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static void __rsnd_ctu_initialize_lock(struct rsnd_mod *mod, u32 enable)
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{
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rsnd_mod_write(mod, CTU_CTUIR, enable);
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}
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static int rsnd_ctu_probe_(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv)
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{
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return rsnd_cmd_attach(io, rsnd_mod_id(mod) / 4);
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}
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static int rsnd_ctu_init(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv)
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{
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rsnd_mod_power_on(mod);
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rsnd_ctu_initialize_lock(mod);
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rsnd_mod_write(mod, CTU_ADINR, rsnd_get_adinr_chan(mod, io));
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rsnd_ctu_initialize_unlock(mod);
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return 0;
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}
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static int rsnd_ctu_quit(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv)
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{
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rsnd_mod_power_off(mod);
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return 0;
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}
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static struct rsnd_mod_ops rsnd_ctu_ops = {
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.name = CTU_NAME,
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.probe = rsnd_ctu_probe_,
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.init = rsnd_ctu_init,
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.quit = rsnd_ctu_quit,
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};
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struct rsnd_mod *rsnd_ctu_mod_get(struct rsnd_priv *priv, int id)
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{
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if (WARN_ON(id < 0 || id >= rsnd_ctu_nr(priv)))
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id = 0;
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return rsnd_mod_get(rsnd_ctu_get(priv, id));
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}
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int rsnd_ctu_probe(struct platform_device *pdev,
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struct rsnd_priv *priv)
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{
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struct device_node *node;
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struct device_node *np;
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struct device *dev = rsnd_priv_to_dev(priv);
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struct rsnd_ctu *ctu;
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struct clk *clk;
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char name[CTU_NAME_SIZE];
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int i, nr, ret;
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/* This driver doesn't support Gen1 at this point */
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if (rsnd_is_gen1(priv))
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return 0;
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node = rsnd_ctu_of_node(priv);
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if (!node)
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return 0; /* not used is not error */
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nr = of_get_child_count(node);
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if (!nr) {
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ret = -EINVAL;
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goto rsnd_ctu_probe_done;
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}
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ctu = devm_kzalloc(dev, sizeof(*ctu) * nr, GFP_KERNEL);
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if (!ctu) {
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ret = -ENOMEM;
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goto rsnd_ctu_probe_done;
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}
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priv->ctu_nr = nr;
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priv->ctu = ctu;
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i = 0;
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for_each_child_of_node(node, np) {
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ctu = rsnd_ctu_get(priv, i);
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/*
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* CTU00, CTU01, CTU02, CTU03 => CTU0
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* CTU10, CTU11, CTU12, CTU13 => CTU1
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*/
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snprintf(name, CTU_NAME_SIZE, "%s.%d",
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CTU_NAME, i / 4);
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clk = devm_clk_get(dev, name);
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if (IS_ERR(clk)) {
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ret = PTR_ERR(clk);
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goto rsnd_ctu_probe_done;
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}
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ret = rsnd_mod_init(priv, rsnd_mod_get(ctu), &rsnd_ctu_ops,
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clk, RSND_MOD_CTU, i);
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if (ret)
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goto rsnd_ctu_probe_done;
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i++;
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}
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rsnd_ctu_probe_done:
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of_node_put(node);
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return ret;
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}
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void rsnd_ctu_remove(struct platform_device *pdev,
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struct rsnd_priv *priv)
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{
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struct rsnd_ctu *ctu;
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int i;
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for_each_rsnd_ctu(ctu, priv, i) {
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rsnd_mod_quit(rsnd_mod_get(ctu));
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}
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}
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